The Safest Electric Heater to Leave Unattended

Time is basically one of the essential commodities a person can trade with; hence most people try to maximize it over the years by trying to multitask. Talking about one of the most common multitasking scenes is in the home: cooking, cleaning and taking care of kids – all simultaneously. No wonder some forget to turn off a few sensitive devices – but not the heater.

Some heaters aren’t reliable enough to leave them running for hours on end. They may overheat and also dangerously increase the level of carbon dioxide in the room. 

However, this is not the case for all heaters on the market. Some are perfectly safe to leave unsupervised and may run all night long.

Therefore, it didn’t take me long to come up with an idea to review the safest electric heater that you can leave unattended.

The use of electric space heaters is very pleasurable due to the warmth and high level of comfort it brings to the home. However, due to the high amount of heat generated, they also require a whole lot of attention, or else they could quickly become a source of danger.

Most individuals prefer the flexibility of leaving a space heater unattended, which, as a result, placed a demand on manufacturers to come up with basically the safest space heaters we see around today.

For many, leaving space heaters unattended isn’t so much of a big deal anymore, thanks to the advanced features. One such example is a design like the cool-to-touch surface, which leaves the body cool regardless of the heat it generates. Even leaving electric space heaters alone, which were well famed for danger, doesn’t rock the mind as it once did.

In essence, space heaters that can be left unattended often put the mind at rest. Space heater safety is an all-time priority and it’s why I reviewed the safest electric heaters in this article. 

AirNmore Comfort Deluxe Space Heater,1500-watt, Infrared and radiant,YES,YES,YES

Dr. Infrared Heater Portable Space Heater, 1500-Watt, Infrared, YES, YES, YES

Asterion indoor electric space heater, 1500-watt, Ceramic, YES, YES, YES

Comfort Zone Oscillating Space Heater, 1500 – watt, Ceramic, YES,YES,NO

Vornado MVH Vortex Heater, 1500-watt, Ceramic, YES, YES, NO

Lasko 755320 Ceramic Space Heater, 1500-watt, Ceramic, YES,YES, NO

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What Are the Safest Portable Heaters?

There are several types of heaters on the market, based on different criteria like the power source and heat generation medium.

Regarding the source of energy, it could be gas-powered, coal, propane, or even kerosene, but the safest of them all to operate inside your home is the electric type. Electric heaters are widely available but come at a higher price. The heaters work by converting power from an outlet to heat energy.

Several safety functions are also much easier to build in when dealing with an electric type heater, features like the auto mode, timer, tip-over protection, overheating protection, and a cool-to-touch surface. 

For this reason, it is more comfortable, safer, and advisable to go for an electric heater, though they are not nearly as powerful as the other types.

Are Space Heaters Safe to Leave on All Night?

Statistics have shown that more than 25,000 residential fires are caused by space heaters every year in the U.S. This begs the question, are these devices, which are responsible for such an alarming amount of fires, safe to be left on all night?

In response to that, I would say it depends on the condition and the heater being used. There are several features to counteract the start of a sudden fire, like the tip-over protection for turn-off devices in case they fall face ground, which could lead to a fire starting up on the surface they lay on from excessive heating. The overheating protection shuts off the device, preventing excessive heat concentration that could cause a fire too.

With these two features, you can leave a heater on for the whole night, though I recommend you program the thermostat so as not to raise temperatures too high. Another safety precaution is to place your device far from the highly-inflammable things like fabric or a wooden surface. Lastly, I always recommend turning off any devices you have at home before leaving. There is no need to waste energy and your money. 

How Long Can Space Heaters Be Left On?

Space heaters can run for as long as you want them to, though some come with overheat protection, which shuts the device off if the temperature becomes too high.

How long a space heater would last could also depend on the timer programmed to keep it running. One can easily set the device to run for anywhere between 1 and 12 hours, while some can even go up to 24 hours.

Top 6 Safest Electric Heaters to Leave Unattended

1) AirNmore Comfort Deluxe with Copper PTC, Infrared Space Heater

Special features: infrared and radiant space heater, ETL listed, 1500 watt max heater, copper PTC heating element, caster wheels.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The AirNmore medium-sized space heater is designed with really high efficiency and capacity to match. Quite weighty in size, this device would fit easily into any home and wouldn’t create a hassle for space.

Feelings After Using the Product

The whole body frame sits on caster wheels, which have been built-in for easy and quick mobility, while also having control buttons at the front side for toggling between various settings of the unit.

This heater makes use of a specially designed heating element, precisely made of copper, and has a good PTC (positive temperature coefficient advantage). 

The PTC is a very different heating technology, which makes use of copper as a significant heat conductor, unlike traditional coil or electric heaters. As a result, they do not dry up humidity; neither do they drop oxygen levels in the home. Initially, my biggest fear was having dry skin due to dry air – fortunately, nothing like that happened. 

The most paramount feature being considered for products reviewed in my article is being able to be left unattended, hence safety, and this product satisfies just that.

The body surface remains pretty much cool to the touch, hence making it very much friendly with kids and pets. Moreover, if it falls, it automatically shuts off. This prevents fire hazards or mishaps that could arise.

The copper heating element is also more efficient. It retains heat for a much longer time than aluminum during a power outage.  Additionally, it is suitable for large-sized rooms of up to 1000sqft in area. I find it very impressive. 

Common Problems and How to Deal with Them

The common problem I discovered was the particles that get into and clog the heater. On the positive side, there is a massive-duty particle filter that prevents these particles from entering the heater. The only thing I had to do is gently brush off the dust accumulated on the filter. 

Key Features

• Infrared and radiant space heater
• ETL listed
• Copper PTC heating element
• Caster wheels

Basic Parameters 

My Rating: 4.8/5

The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

3) Asterion indoor electric space heater with adjustable thermostat 

Special features: LED display, adjustable thermostat, 1,500 Watts capacity, oscillation, ceramic type heater, flame-resistant material, PTC heating element, eco mode

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The AirNmore medium-sized space heater is designed with really high efficiency and capacity to match. Quite weighty in size, this device would fit easily into any home and wouldn’t create a hassle for space.

Feelings After Using the Product

The whole body frame sits on caster wheels, which have been built-in for easy and quick mobility, while also having control buttons at the front side for toggling between various settings of the unit.

This heater makes use of a specially designed heating element, precisely made of copper, and has a good PTC (positive temperature coefficient advantage). 

The PTC is a very different heating technology, which makes use of copper as a significant heat conductor, unlike traditional coil or electric heaters. As a result, they do not dry up humidity; neither do they drop oxygen levels in the home. Initially, my biggest fear was having dry skin due to dry air – fortunately, nothing like that happened. 

The most paramount feature being considered for products reviewed in my article is being able to be left unattended, hence safety, and this product satisfies just that.

The body surface remains pretty much cool to the touch, hence making it very much friendly with kids and pets. Moreover, if it falls, it automatically shuts off. This prevents fire hazards or mishaps that could arise.

The copper heating element is also more efficient. It retains heat for a much longer time than aluminum during a power outage.  Additionally, it is suitable for large-sized rooms of up to 1000sqft in area. I find it very impressive. 

Common Problems and How to Deal with Them

The common problem I discovered was the particles that get into and clog the heater. On the positive side, there is a massive-duty particle filter that prevents these particles from entering the heater. The only thing I had to do is gently brush off the dust accumulated on the filter. 

Key Features

• Infrared and radiant space heater
• ETL listed
• Copper PTC heating element
• Caster wheels

Basic Parameters 

My Rating: 4.8/5

The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

3) Asterion indoor electric space heater with adjustable thermostat 

Special features: LED display, adjustable thermostat, 1,500 Watts capacity, oscillation, ceramic type heater, flame-resistant material, PTC heating element, eco mode

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

MORE LIKE THIS

• Best Hospital grade whole house air purifier
• Best air purifier and Humidifier for baby
• Best Humidifier for post nasal drip

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The AirNmore medium-sized space heater is designed with really high efficiency and capacity to match. Quite weighty in size, this device would fit easily into any home and wouldn’t create a hassle for space.

Feelings After Using the Product

The whole body frame sits on caster wheels, which have been built-in for easy and quick mobility, while also having control buttons at the front side for toggling between various settings of the unit.

This heater makes use of a specially designed heating element, precisely made of copper, and has a good PTC (positive temperature coefficient advantage). 

The PTC is a very different heating technology, which makes use of copper as a significant heat conductor, unlike traditional coil or electric heaters. As a result, they do not dry up humidity; neither do they drop oxygen levels in the home. Initially, my biggest fear was having dry skin due to dry air – fortunately, nothing like that happened. 

The most paramount feature being considered for products reviewed in my article is being able to be left unattended, hence safety, and this product satisfies just that.

The body surface remains pretty much cool to the touch, hence making it very much friendly with kids and pets. Moreover, if it falls, it automatically shuts off. This prevents fire hazards or mishaps that could arise.

The copper heating element is also more efficient. It retains heat for a much longer time than aluminum during a power outage.  Additionally, it is suitable for large-sized rooms of up to 1000sqft in area. I find it very impressive. 

Common Problems and How to Deal with Them

The common problem I discovered was the particles that get into and clog the heater. On the positive side, there is a massive-duty particle filter that prevents these particles from entering the heater. The only thing I had to do is gently brush off the dust accumulated on the filter. 

Key Features

• Infrared and radiant space heater
• ETL listed
• Copper PTC heating element
• Caster wheels

Basic Parameters 

My Rating: 4.8/5

The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

3) Asterion indoor electric space heater with adjustable thermostat 

Special features: LED display, adjustable thermostat, 1,500 Watts capacity, oscillation, ceramic type heater, flame-resistant material, PTC heating element, eco mode

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

MORE LIKE THIS

• Best Hospital grade whole house air purifier
• Best air purifier and Humidifier for baby
• Best Humidifier for post nasal drip

The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The AirNmore medium-sized space heater is designed with really high efficiency and capacity to match. Quite weighty in size, this device would fit easily into any home and wouldn’t create a hassle for space.

Feelings After Using the Product

The whole body frame sits on caster wheels, which have been built-in for easy and quick mobility, while also having control buttons at the front side for toggling between various settings of the unit.

This heater makes use of a specially designed heating element, precisely made of copper, and has a good PTC (positive temperature coefficient advantage). 

The PTC is a very different heating technology, which makes use of copper as a significant heat conductor, unlike traditional coil or electric heaters. As a result, they do not dry up humidity; neither do they drop oxygen levels in the home. Initially, my biggest fear was having dry skin due to dry air – fortunately, nothing like that happened. 

The most paramount feature being considered for products reviewed in my article is being able to be left unattended, hence safety, and this product satisfies just that.

The body surface remains pretty much cool to the touch, hence making it very much friendly with kids and pets. Moreover, if it falls, it automatically shuts off. This prevents fire hazards or mishaps that could arise.

The copper heating element is also more efficient. It retains heat for a much longer time than aluminum during a power outage.  Additionally, it is suitable for large-sized rooms of up to 1000sqft in area. I find it very impressive. 

Common Problems and How to Deal with Them

The common problem I discovered was the particles that get into and clog the heater. On the positive side, there is a massive-duty particle filter that prevents these particles from entering the heater. The only thing I had to do is gently brush off the dust accumulated on the filter. 

Key Features

• Infrared and radiant space heater
• ETL listed
• Copper PTC heating element
• Caster wheels

Basic Parameters 

My Rating: 4.8/5

The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

3) Asterion indoor electric space heater with adjustable thermostat 

Special features: LED display, adjustable thermostat, 1,500 Watts capacity, oscillation, ceramic type heater, flame-resistant material, PTC heating element, eco mode

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The AirNmore medium-sized space heater is designed with really high efficiency and capacity to match. Quite weighty in size, this device would fit easily into any home and wouldn’t create a hassle for space.

Feelings After Using the Product

The whole body frame sits on caster wheels, which have been built-in for easy and quick mobility, while also having control buttons at the front side for toggling between various settings of the unit.

This heater makes use of a specially designed heating element, precisely made of copper, and has a good PTC (positive temperature coefficient advantage). 

The PTC is a very different heating technology, which makes use of copper as a significant heat conductor, unlike traditional coil or electric heaters. As a result, they do not dry up humidity; neither do they drop oxygen levels in the home. Initially, my biggest fear was having dry skin due to dry air – fortunately, nothing like that happened. 

The most paramount feature being considered for products reviewed in my article is being able to be left unattended, hence safety, and this product satisfies just that.

The body surface remains pretty much cool to the touch, hence making it very much friendly with kids and pets. Moreover, if it falls, it automatically shuts off. This prevents fire hazards or mishaps that could arise.

The copper heating element is also more efficient. It retains heat for a much longer time than aluminum during a power outage.  Additionally, it is suitable for large-sized rooms of up to 1000sqft in area. I find it very impressive. 

Common Problems and How to Deal with Them

The common problem I discovered was the particles that get into and clog the heater. On the positive side, there is a massive-duty particle filter that prevents these particles from entering the heater. The only thing I had to do is gently brush off the dust accumulated on the filter. 

Key Features

• Infrared and radiant space heater
• ETL listed
• Copper PTC heating element
• Caster wheels

Basic Parameters 

My Rating: 4.8/5

The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

3) Asterion indoor electric space heater with adjustable thermostat 

Special features: LED display, adjustable thermostat, 1,500 Watts capacity, oscillation, ceramic type heater, flame-resistant material, PTC heating element, eco mode

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The AirNmore medium-sized space heater is designed with really high efficiency and capacity to match. Quite weighty in size, this device would fit easily into any home and wouldn’t create a hassle for space.

Feelings After Using the Product

The whole body frame sits on caster wheels, which have been built-in for easy and quick mobility, while also having control buttons at the front side for toggling between various settings of the unit.

This heater makes use of a specially designed heating element, precisely made of copper, and has a good PTC (positive temperature coefficient advantage). 

The PTC is a very different heating technology, which makes use of copper as a significant heat conductor, unlike traditional coil or electric heaters. As a result, they do not dry up humidity; neither do they drop oxygen levels in the home. Initially, my biggest fear was having dry skin due to dry air – fortunately, nothing like that happened. 

The most paramount feature being considered for products reviewed in my article is being able to be left unattended, hence safety, and this product satisfies just that.

The body surface remains pretty much cool to the touch, hence making it very much friendly with kids and pets. Moreover, if it falls, it automatically shuts off. This prevents fire hazards or mishaps that could arise.

The copper heating element is also more efficient. It retains heat for a much longer time than aluminum during a power outage.  Additionally, it is suitable for large-sized rooms of up to 1000sqft in area. I find it very impressive. 

Common Problems and How to Deal with Them

The common problem I discovered was the particles that get into and clog the heater. On the positive side, there is a massive-duty particle filter that prevents these particles from entering the heater. The only thing I had to do is gently brush off the dust accumulated on the filter. 

Key Features

• Infrared and radiant space heater
• ETL listed
• Copper PTC heating element
• Caster wheels

Basic Parameters 

My Rating: 4.8/5

The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

3) Asterion indoor electric space heater with adjustable thermostat 

Special features: LED display, adjustable thermostat, 1,500 Watts capacity, oscillation, ceramic type heater, flame-resistant material, PTC heating element, eco mode

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

MORE LIKE THIS

• Best Hospital grade whole house air purifier
• Best air purifier and Humidifier for baby
• Best Humidifier for post nasal drip

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.

This portable space heater is very small and designed to serve confined spaces. It takes the looks of a traditional heater, possessing a centralized fan, which blows out heat generated into the air, hence effectively raising the temperature of the environs by a considerable level. The mobility of this device is a piece of cake, as it has a built-in handle at the back where an adult hand can easily fit in.

Feelings After Using the Product

With a unique vortex air circulation design, using this device is a very effective way of heating up the room at a low cost. The heater has a dial, which is used to select different heat levels. 

This design allows the unit to heat up and then circulate the air throughout a room, unlike some others that work by releasing extreme heat directly from the heater. This makes the device very hot too.

The body surface of this heater is very cool to the touch, and it is built with overheating protection. It means when the temperature gets to unhealthy levels, it shuts itself off automatically. Another shutoff act also comes into play when the device is knocked over for whatever reason to avoid fire hazards.

With the auto mode, this device is basically able to run itself, having an adjustable thermometer for picking a temperature level to be attained and maintained by the device. This temperature is varied by the user.

Despite having a fan for warm air circulation, it operates pretty quietly, barely making enough noise to attract attention. It also comes with a 5-year warranty attached to those in the US. Outside the US, there is no guarantee of proper functioning or performance.

Common Problems and How to Deal with Them

The Vornado heater resembles traditional small-sized heaters that have a fan to circulate the hot air. Unlike competitors, this heater will only blow air in one direction, which means it cannot distribute the heat evenly. 

Another disadvantage is obviously its size. It was quite difficult for me to warm up my small study room. However, when in close proximity, you will get warmed up pretty quickly. 

Key Features

• Adjustable thermostat
• Vortex air circulation

Basic Parameters 

My Rating: 4/5

6) Lasko 755320 Ceramic Space Heater

Special features: product dimensions; 88.5 x 7.25 x 23 inches, tower type, adjustable thermostat, 1,500-watt capacity, digital temperature display, ETL listed, item weight 8 pounds, ceramic heater type.

Lasko is a well-known name in the world of space heaters, and from the depth of their designs comes the 755320. It is a tower-type design unit, which is as portable as a heater could get, being very small in size, therefore not going to occupy much space in the home.

Feelings After Using the Product

At the top side of the unit is a LED display screen, which works in hand with a digital thermostat, and unitedly they combine to measure and keep the user updated on the temperature level of the room.

The device makes use of a ceramic heating element type, which is known for doing an excellent job in heating, as well as efficiency. Like all the products on my review list so far, the 755320 is built to work in any kind of area, while being safe for people around.

Its body is entirely cool to touch while working, and it also comes with overheat protection, which is in place to turn off the device when the thermostat senses temperature rising to unsafe levels.

Despite its relatively modest price, the much-desired remote control feature is also built-in. Honestly, it was a nice surprise because remote control usually comes with higher-end products. 

It also comes with the auto mode for working automatically to maintain the temperature at a safe level.

A cool thing about this product is that it does all these while being very quiet in operation, though it is very much suited to small spaces only, which is a real turn-off to purchasing this product.

Common Problems and How to Deal with Them

Although the Lasko heater is very similar to the Vornado, it has a few differences. Despite the size, it has a remote control, timer, and a LED screen display. So, if you want a portable heater to place in your small room, this is a great choice. 

Key Features

• Tower type
• Adjustable thermostat
• Digital temperature display
• ETL listed
• Ceramic heater type

Basic Parameters 

My Rating: 4.2/5

Features to Consider in Choosing Safe Space Heaters for Overnight Use

Safety

There is one crucial thing to consider above all the impressive features and capacity of a space heater, and this is how safe it is to use, especially indoors. Due to the many risks associated with using a portable heater, one might quickly shy away from having one and sourcing an alternative means of heat, but not again.

A device with a combination of overheating protection, tip-over protection, and a cool-to-touch surface can be basically used anywhere in the home without concerns of burns or fire hazards.

Capacity

The capacity of a space heater is determined majorly by how large a room it can serve, as well as how much time it takes to get its temperature up to a comfortable level. 

Any unit purchased should have enough capacity to serve its intended work area. Therefore, do your research on both the area of your home, as well as the various capacities of the unit.

Power Consumption

Space heaters usually require a far more significant amount of energy to work compared to other household electronics, being in the same range as hot plates and pressing iron.

This is a guarantee that more kilowatt-hours would be consumed in the home; however, I recommend you check the power requirement of a unit before purchase, ensuring it is not too high, which could cause quite a spike in energy bills.

Mobility

This is mainly for convenience purposes. Heaters could be needed anywhere in the home, and if it is not a centralized high-capacity type, the further an area is, the less impact it would have. This is where mobility becomes useful, as it allows smooth movement of the space heater around the home.

Heater Type

There are several types of heaters out there, from infrared to ceramic or oil ones. Each heater has its own peculiarity as well as a downside. Therefore, it’s best to tailor your purchase according to a preferred need.

For example, infrared heaters have a faster impact, but the heat released dissipates almost as soon as the device goes off, while the oil heater takes time to raise the temperature of the room but has a far more lasting effect.

Can Electric Heaters Cause Fire?

Well, no heater is free from the fire hazard potential. It’s just that some are more prone and likely to cause a fire than others. Using an electric heater in any of the unsafe ways may start a fire in your home. However, an electric heater would take far more time to cause the fabric to burn, for example, compared to a gas-powered space heater.

Therefore, to prevent this grave event, you need to choose a reliable heater and place it in a safe spot at your home. 

How Do Space Heaters Cause Fires?

Space heaters do not generate fire by themselves but rather as a result of interaction with other objects in the room and one thing leading to another.

The first way fire could stem from using a heater is when the unit is made of cheap plastic. Under extreme heat conditions, this plastic material could melt, hence causing a fire to start up unexpectedly.

Another way a space heater could cause a fire is due to the carelessness of the user. Space heaters should not be placed close to fabrics like curtains or the couch, or even furniture.

Placing a heater to face a highly-flammable object will concentrate heat on the same spot over time, hence giving rise to the possibility of the material lighting up, and before you know it, everyone’s screaming fire.

Lastly, a space heater falling face to the ground and continuing working is undoubtedly going to start a fire; it is only a matter of time. Heat concentrated on a spot for too long would result from burning, which would cause the fire to stem up high.

Precautions on Using Electric Space Heaters 

I have put together a few safety tips to adhere to when using a space heater. They are:

• Avoid overheating; this is the tendency for a user to keep the device running, even after achieving a considerable level of heat, and many times it could cause skin burns.
• Always read the manufacturer’s instructions as well as warnings, and adhere to them.
• Inspect the heater for cracks and broken areas, especially around the plug and other connections, before and after every use. Do not use the discovery of damage.
• Although safe, do not adopt a habit of always leaving a space heater entirely unattended. Check up on it once in a while.
• Place the heater at least 4 feet away from flammable materials like papers and clothes.
• Keep heaters away from high-traffic areas that could cause a trip or fall.
• Always place heaters on a flat surface on the floor, and never on tabletops or any other furniture.
• Ensure you plug the heater into a wall socket directly. Do not use an extension box or any other device, as this increases the fire hazard possibility, and also, do not plug any other outlet into the same socket as the space heater.
• Always put away and store space heaters when not in use or intended to be used for an extended period of time later.
• Install smoke alarms at several corners of your home, which would ring out in the case of a fire alarm.

Final Verdict: What Heaters Are Safe to Leave Overnight Unattended

My most recommended product on the safest electric heater to leave unattended list is the AirNmore Comfort space heater. Designed to be safe to use in any sort of environment, the device has lots of great features such as overheat protection, tip-over protection, as well as an utterly cool surface to touch. When it comes to capacity, this device is far ahead of basically all other products on our list. Being able to serve up to 1000 sqft, this heater is suitable for whole-house heating purposes.

Dr. Infrared Heater Portable Space Heater is also an excellent choice to settle on for those with a smaller budget. It is also useful for serving large spaces, though not even close to the AirNome in capacity, but it also possesses the safety qualities required to qualify as a heater, which can be left unattended. These features include the cool-to-touch surface, overheat protection, and tip-over protection.

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The AirNmore medium-sized space heater is designed with really high efficiency and capacity to match. Quite weighty in size, this device would fit easily into any home and wouldn’t create a hassle for space.

Feelings After Using the Product

The whole body frame sits on caster wheels, which have been built-in for easy and quick mobility, while also having control buttons at the front side for toggling between various settings of the unit.

This heater makes use of a specially designed heating element, precisely made of copper, and has a good PTC (positive temperature coefficient advantage). 

The PTC is a very different heating technology, which makes use of copper as a significant heat conductor, unlike traditional coil or electric heaters. As a result, they do not dry up humidity; neither do they drop oxygen levels in the home. Initially, my biggest fear was having dry skin due to dry air – fortunately, nothing like that happened. 

The most paramount feature being considered for products reviewed in my article is being able to be left unattended, hence safety, and this product satisfies just that.

The body surface remains pretty much cool to the touch, hence making it very much friendly with kids and pets. Moreover, if it falls, it automatically shuts off. This prevents fire hazards or mishaps that could arise.

The copper heating element is also more efficient. It retains heat for a much longer time than aluminum during a power outage.  Additionally, it is suitable for large-sized rooms of up to 1000sqft in area. I find it very impressive. 

Common Problems and How to Deal with Them

The common problem I discovered was the particles that get into and clog the heater. On the positive side, there is a massive-duty particle filter that prevents these particles from entering the heater. The only thing I had to do is gently brush off the dust accumulated on the filter. 

Key Features

• Infrared and radiant space heater
• ETL listed
• Copper PTC heating element
• Caster wheels

Basic Parameters 

My Rating: 4.8/5

The Dr. Infrared space heater stands barely about 16 inches off the ground in height, making it quite moderate in size and only slightly bigger than a microwave. Still, very powerful, safe, and efficient. 

Feelings After Using the Product

It comes with a finely polished surface, bringing along with a good heating ability and also good looks. It can fit into several home design settings. The device has a built-in thermometer, which measures the temperature of the room at every instance and displays it on the LED screen. Several control button options are also present for the user.

Some people may find the device sophisticated, with lots of buttons on display. But I actually set a mode I preferred to use at all times and was pressing only two buttons to adjust the heat level. 

The heater is an infrared portable space type, with a capacity of 1500 watts at the highest setting and only 1000 on the low. However, this capacity is not equivalent to the amount of heat it can generate. Instead, it only speaks of the power needed to run the device.

In summary, the unit is able to generate much heat from a relatively small wattage. It is also designed to work with high pressure, hence enabling it to force a higher amount of heat at a lower time than it should.

The device makes use of infrared technology. What it does is heat the objects in the room, and not the air itself, allowing it to use nearly 100% of the heat generated and almost no loss in heat transfer. Honestly, I couldn’t tell the difference; my room was still warm and cozy. 

There is one feature in particular that I liked the most – the auto mode. The setting allows the device to function independently, shuffling efficiently between the low and high speeds, bringing temperature level and maintaining it in a comfortable range. For more convenience, the remote control feature is built-in with the design of the product, and gladly, I could access it from afar off too.

As an ambassador of safety, the surface of this device is very cool to touch; hence it can be left around kids and pets. The tip-over protection is also in place for shutting the device off if it tumbles.

The Dr. Infrared heater offers amazing features, including a timer. I tested setting my device to a 12-hour work and less. Every time it successfully stopped operating on time. 

Sealed with a 3-year warranty, this product is undoubtedly a good buy for its quality.

Common Problems and How to Deal with Them

With so many great features included, I had no complaints about this device. Yes, it is expensive, but you will have a warranty, safety, and reliance on this heater. 

Key Features

• PTC infrared quartz tube
• Caster wheels, item weight 19 pounds
• Certified by underwriter laboratories
• LED display, high-pressure

Basic Parameters 

My Rating: 4.8/5

3) Asterion indoor electric space heater with adjustable thermostat 

Special features: LED display, adjustable thermostat, 1,500 Watts capacity, oscillation, ceramic type heater, flame-resistant material, PTC heating element, eco mode

The design of this heater takes an entirely different turn from the ones we have reviewed so far. Rather than the boxed bulky nature, this is a tower-type device, hence has a tiny footprint and can fit into the tightest of spaces.

Feelings After Using the Product

Since the heater has a tower design, it offers a rotational capacity of precisely 360 degrees, which gives it a full direct area of coverage, as well as more even heat distribution in the home. 

There is also an LED display present for showing temperature values taken by the adjustable thermostat.

This space heater works with a maximum power wattage consumption of 1,500 watts. When I was testing it, I let it run on the eco mode, which, of course, led to lower power consumption. 

I liked this mode because the device balanced the preset temperature level and didn’t overheat. 

A ceramic PTC heating element is the source of heat generation in this device, and of course, high PTCs are always more efficient both in the generation and distribution of heat. 

The device’s design has a cool-to-touch surface, which eliminates all sorts of skin burns associated with heaters, as well as the tip-over protection that turns the heater off if at any point it gets knocked off its feet.

Despite these excellent features, this heater is only able to serve small to medium-sized rooms, which, in my opinion, is a significant disadvantage. 

It, however, has a remote control for more user convenience, as well as an anti-dust filter keeping dirt away from the element. Carrying it around is pretty easy with a built-in handle at the back.

As for the warranty, the manufacturer offers only one year.

Common Problems and How to Deal with Them

I really liked the remote control and the eco mode in this heater. However, the only minus I can spot is its size. Unfortunately, it didn’t do a good job of heating up my basement or living room. However, it performed much better in smaller rooms like my bedroom. 

Key Features

•  LED display
• Adjustable thermostat
• Oscillation, ceramic type heater
• Flame-resistant material
• PTC heating element, eco mode

Basic Parameters 

My Rating: 4.5/5

4) Comfort Zone Oscillating Space Heater

Special features: ceramic heater type, oscillating design, LED display, Digital thermostat, eco mode, ETL certified,

Another tower-type heater on my list is the Comfort Zone model. It is an oscillating type that is typically known for its easy mobility, as well as its ability to efficiently and evenly distribute around all areas through the use of a powerful fan.

Feelings After Using the Product

If you are looking for a heater that is safe and can evenly distribute the heat, the Comfort Zone heater may be a good choice for you. 

This is possible due to its oscillating mode of operation, whereby it is rotatable by 360 degrees. It also comes with a digital thermostat that has an LED display for measuring and showing values of the next temperature level in the area.

The device is a ceramic space heater type; hence it is really efficient for heating up the air, and according to the build of this product, it is able to serve small to medium-sized rooms.

Aside from that downside, it possesses several impressive features that I surely found beneficial, such as the eco mode. The eco mode is responsible for managing energy, as well as maintaining temperature on a preset value chosen by the user.

The safety capabilities of this device are also top-notch, having the famed tip-over function, which plagued the early inception of space heaters by causing a whole lot of fire hazards, as well as a cool-to-touch surface. As a result, it can be placed anywhere in the home without the fear of burns.

Convenience features like the remote control for operating from a distance are also present, as well as the timer. This timer really comes in handy; I saved quite a bit of money running the device only for a limited time.I set a working duration of anywhere from 1 to 12 hours. 

The space heater is also very mobile, as it has built-in handles for easy lifting and moving to wherever it is needed.

Common Problems and How to Deal with Them

The only reason this and the previous heaters weren’t rated 5/5 is because of their size. Both heaters are portable and have great features. However, they will cost you a lot if you want to warm up a large-sized room. 

Key Features

• Ceramic heater type
• Oscillating design
• LED display
• Digital thermostat
• Eco mode
• ETL certified

Basic Parameters 

My Rating: 4.5/5

5) Vornado MVH Vortex Heater with 3 Heat Settings

Special features: adjustable thermostat, vortex air circulation, 1,500 watts capacity, item weight; 3.76 pounds, product dimension; 7.68 x x7.13 x 5.95 inches.