Best Energy Efficient Space Heaters Reviewed)

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Are you in search of the best space heater for large room? Then it can help you a lot to pick one with a high energy-efficiency rating. The good thing about space heaters is that their energy-efficiency is thrice as high as fireplaces.

With that, this type of heater is perfect for you if you want to have something at home that can heat your large room without costing a lot on energy. If you are still unsure how to look for one, then use this article as your guide.

Start with the following recommendations of energy-efficient space heaters guaranteed to help you save money while also being safe, efficient, and functional.

What is a Space Heater?

A space heater is a device whose main function is to supplement the primary heating system in a room, house, or building. It is a vital tool especially if your room has insufficient heat output or if it is difficult for you to take control of ambient temperature.

One thing you have to know about these space heaters is that they are available in various sizes, capacities, and shapes. Many models and brands of these devices are also available.

Among those proven to be energy-efficient plus capable of heating large rooms are the following:

Best Energy Efficient Space Heaters

Comfort Zone Oscillating Space Heater

This oscillating space heater from the famous Comfort Zone brand captures the interest of many homeowners who need this type of device because of many positive reasons. One of these is its ability to deliver heat quickly and efficiently.

It is mainly because of the oscillating function of this device, allowing it to use forced-fan circulation when it comes to heating. It does so while it rotates from one side to another. With that, expect it to evenly warm a large room fast.

It is also made in such a way that it can retain a consistently comfortable temperature. This oscillating space heater also makes use of an effective digital thermostat, which contributes a lot in preventing stuffiness and overheating.

This capability makes the space heater effective in promoting comfort. It also features an 8-hour timer, which also has an auto-shutoff function. With this feature, you can set or program the device in advance, maintaining a comfortable temperature for long hours.


  • Assures users of quick, even, and efficient heating, thanks to its oscillating function
  • Can maintain a comfortable temperature consistently with the aid of its digital thermostat
  • Features a timer and auto-shutoff, promoting ease in setting the device in advance
  • Boasts of an eco-mode, allowing the device to save on energy
  • Easy to adjust, thanks to the included remote control


  • Kind of flimsy base

Bottom Line

It would have been much better if the base of this oscillating space heater has a bit of additional weight since it is quite flimsy as of the moment. Other than that issue, though, the device truly works well.

No one can complain about how good it is in delivering sufficient heat without significantly increasing your electricity bills.

Product Specs:

  • Oscillating function, promoting fan-forced heating circulation
  • 8-hour timer featuring an auto-shutoff function
  • Eco-mode designed to adjust heat output
  • Digital thermostat for even and better heat distribution
  • Large-room temperature display
  • Tip-over, cut-off switch
  • ETL certified
  • Lightweight and durable ceramic build
  • Stay cool housing, further boosting the device’s energy-efficiency
  • Tower with remote control

Heat Storm Phoenix Infrared

Another amazing choice of an energy-efficient space heater is the Heat Storm Phoenix Infrared. It is so portable that moving it or setting it up will not be that hard. This infrared heater operates at 1,500 watts, allowing it to heat rooms and offices.

It does so with the help of the devices 5200 BTU heat output. Another reason why many are so impressed with this infrared space heater is that it makes use of a patented and unique heat exchanger, which also uses HMS technology.

This specific feature blends well with a room’s humidity, resulting in safe and soft heat without significantly decreasing humidity or oxygen. Another advantage of this space heater is that it prioritizes the security of users through its safe to touch structure.

This space heater also features wall mounting points and removable feet that you can use to either set the device on the ground or let it hang on your wall. It surely gives you freedom in choosing how you intend to install it.


  • Compact, lightweight, and portable structure, promoting ease in moving it around
    Provides a couple of options in installing or setting it up at home
    Effective in heating rooms and offices without too much energy consumption
    Comes with a thermostat that shuts off the device automatically when your desired temperature is reached
    Boasts of its safe to touch structure


  • Not that strong remote control

Bottom Line

Overall, this infrared space heater delivers an impressive performance, especially when used in large rooms. It has most of the features required to make it function as a truly effective space heater.

Moreover, it is energy-efficient without losing its ability to provide sufficient heat in any room, space, office.

Product Specs:

  • Two power modes – one at 1,500 watts while the other at 750 watts
  • 5,200 BTU heat output
  • Patented heat exchanger combined with the use of HMS technology
  • ETL safety certified
  • Safe to touch structure
  • Removable feet
  • Wall mounting points
  • Built-in thermostat
  • LED display
  • Remote control designed to help users have full control over temperature

Lasko Ceramic Tower

The next highly recommended product is the Lasko Ceramic Tower. Many are impressed with the way it is structured as it has a stylish body and a nice finish that complements perfectly with home decors.

It is ideal for household use, thanks to its powerful heating element made of ceramic. Aside from that, it has three settings that operate without producing heat. With that, it is surely great to use at home since it will not be a disturbance.

Another great thing about this specific space heater is that its size is compact and convenient. The size is just right that it perfectly fits any place you prefer. With its perfect size and fit, it can quickly warm or heat a space.

Another nice feature is the adjustable thermostat, which makes it possible for you to adjust the heat with ease. It also comes with LED temperature settings that you can easily read, further promoting ease of use.


  • Comes with a stylish body and beautiful finish, letting it blend with home decors
  • Features multiple heat settings, giving users freedom and control
  • Comes at just the right size and fit
  • Equipped with an adjustable thermostat
  • Has LED temperature settings that are easy to read


  • The remote control needs to be purchased separately.

Bottom Line

Many think of the issue as just minor considering how great the overall performance of this energy-efficient space heater is. It delivers an incredible and efficient performance, especially in terms of heating a room.

The fact that it comes fully assembled is also a huge advantage as it also means that you will be able to put it to use within just a few seconds or minutes of receiving it.

Product Specs

  • Powerful ceramic heating element
  • 1,500-watts of comforting warmth provided
  • Adjustable thermostat designed to maximize comfort
  • Wireless remote control
  • Widespread oscillating function
  • Readable LED temperature settings with temperature selections from 60 to 85 degrees Fahrenheit
  • Cool-touch exterior for user’s safety
  • Overheat protection and other built-in safety features
  • Built-in timer with 1-hour to 7-hour settings

Asterion Oscillating Electric Space Heater

It is also advisable to consider using the oscillating electric space heater from Asterion. There are many things to love about this product – one of which is the eco-mode or setting. You can use this setting to adjust the temperature while consuming less energy.

The eco-mode function is indeed a big help in saving energy and significantly reducing your bill. Another great thing about this space heater is that it delivers 72-degree wide-angle heating, providing appropriate space and heating combination.

This ceramic space heater also takes pride in its 24-hour timer. You can use it to set the most appropriate heating time for you. You can also use the remote control, which features smart and flexible operation.

With such features, you will surely have full control over this heating device. Another advantage of this space heater is that it operates quietly. Apart from that, it has several safety features, including its tip-over and overheat protection as well as auto-shutoff.


  • Proven to be energy-efficient through its eco-mode or setting
  • Promotes ease in adjusting the temperature based on the way it is structured
  • Smart and flexible operation with the aid of its remote control
  • Equipped with a 24-hour timer
  • Safety features, like tip-over and overheat protection included in the device


  • No illumination for the built-in on/off switch

Bottom Line

I think it would be a lot better if the on/off switch has a sort of illumination to make it easier to use. Apart from that very minor flaw, though, this space heater is already a great performer.

It is compact and portable, too, which increases the number of positive things you will surely enjoy when using this device.

Product Specs:

  • 72-degree oscillation function
  • Comfort warmth and smart control
  • 5 temperature settings provided – low, fan, high, freeze, and ECO
  • LED digital display, which is clear enough
  • Safety features, like the tip-over switch and overheat protection/auto-off
  • Safety PTC material
  • Portable yet sturdy handle
  • 24-hour timer for setting the device at your most preferred time
  • Flame-retardant material

Auzkin Oscillating Space Heater

You will also be delighted if you choose this specific oscillating space heater. It has a compact structure, which assures potential homeowners that putting it or installing it at home will not be that hard.

It is also designed in a way that it can automatically oscillate with just a single press. With such a function, it can conveniently supply sufficient warm air, which comes from a wide angle, making its ability to provide warmth more widespread.

The lightweight structure of this ceramic space heater is also a big advantage as it allows you to bring it anywhere. It even features a handle with a sleek design at the back that promotes further ease in carrying it around.

It is also a fully functional heating device – thanks to its three temperature settings, namely the high heat, low heat, and natural wind. With such settings, you can provide your home with the temperature you need the entire year.


  • Compact structure, ensuring that it won’t consume a lot of space when installed
  • Lightweight and portable structure featuring a sleek handle
  • Provides three temperature settings, giving you full control
  • Safe and secure as it contains several safety features, including the fire-resistant material, auto-shutoff, and tip-over safety protection


  • The power cord is a bit short.

Bottom Line

While it would have been a lot better if the power cord is slightly longer, it is still just a minor flaw considering the many incredible benefits offered by this device. It is a powerhouse when it comes to heating.

The fact that it is lightweight, compact, and portable also makes it a lot easier to use. It is also highly versatile as it provides an option to adjust the temperature.

Product Specs:

  • V-0 fire-resistant material
  • Wide-angle auto-oscillating function
  • PTC ceramic structure
  • 3 heating modes – low heat, high heat, natural wind
  • Energy-efficient ceramic heating technology used
  • Safety features, including the tip-over trigger, overheat protection, and auto shut-off function
  • Compact and portable yet stable design
  • Carrying handle boasting of a sleek design

Dr. Infrared Space Heater

You will not also go wrong by choosing Dr. Infrared Space Heater because of the numerous incredible advantages it offers. The fact that this device is designed to be an auto energy-saving model is proof that it is energy-efficient.

It is also designed in such a way that it can heat large rooms without losing its energy-efficient capabilities. Another advantage of this heater is that it works quite similarly to the sunlight. It means that it provides warmth to objects instead of the air.

With that, expect the infrared heat that it provides to feel natural while also being highly energy-efficient. This space heater from Dr. Infrared is also built in a way that it can operate quietly.

Using this device also offers peace of mind as it has a couple of safety features, including overheat and tip-over protection. Furthermore, it has a programmable timer plus it is created in a way that you can adjust it even remotely.


  • Proven to be energy-efficient, thanks to its energy-saving design
  • Operates quietly, so it won’t disturb anyone at home
  • Ideal for large rooms and spaces
  • Comes with a few safety features, among which are the overheat protection and tip-over protection
  • Allows remote adjustments of its settings


  • Comes with setup instructions that are quite hard to comprehend

Bottom Line

Even with that problem, it is undeniable how great the Dr. Infrared space heater is, especially if you consider all the remarkable features that it has. It is also proven to be energy-efficient plus it is convenient to use with its user-friendly design and quiet operation.

Aside from that, you can use it without worries since it is fully secure. It also lets you adjust it wherever you are.

Product Specs:

  • 1,500-watt power
  • 12-hour programmable timer
  • Quiet and highly advanced 7-inch blower for high-pressure generation
  • Safety features, including safe-to-touch structure, tip-over shutoff, and overheat protection
  • Dual heating systems
  • Electronic thermostat from 50 to 86 degrees
  • Lifetime removable filter for ease of maintenance
  • Caster wheels
  • Rapid heat transfer rate

AmazonBasics Eco-smart Space Heater

This AmazonBasics Eco-smart Space Heater also leaves a good impression on a lot of users because it has several features that make it truly effective as a heating device. One of the many things you will love about it is its elegant and portable design.

It has an elegant wood finish that makes it great to incorporate in any room or space. The design is also versatile in the sense that it will fit both homes and offices. It is built in a way that it can provide soothing warmth quickly.

It efficiently and thoroughly provides heat to the surrounding, giving you as much comfort as you want regardless of how cold the season is. This device is also one of the most energy-efficient portable heaters you can find today.

It can lessen the energy cost by supplying supplemental heat. Moreover, it takes pride in its dual heating system composed of PTC and quartz tube structures. Aside from that, you will feel more in control of the temperature with this device through its standby mode as well as its three power settings.


  • Boasts of a nice and elegant look and finish
  • Portable and versatile design, allowing it to blend well in any space, whether at home or in the office
  • Created in a way that it can supply soothing warmth quickly
  • Provides full control with its modes and settings
  • Proven to be energy-efficient with its ability to provide supplemental heat


  • Produces a bit of noise when in use

Bottom Line

Even with the noise issue, this energy-efficient space heater from AmazonBasics continues to earn great reviews from the public because of its incredible performance. It is solid and stable while retaining its portability.

It also does its job of heating large spaces and rooms quickly. Furthermore, it is energy-efficient so you do not have to worry about your electricity expenses going up when using it.

Product Specs:

  • Elegant wood finish
  • Adjustable electronic thermostat
  • Adjustable temperature setting with a range of 65 to 85 degrees Fahrenheit
  • 4 infrared heating elements and 750-watt and 1,500-watt power settings
  • Eco-mode or Eco-smart settings
  • Highly readable LED display
  • Safety features, including the overheat sensor
  • 12-hour programmable timer with an auto-shutoff function
  • Remote control for easy adjustments

Who Needs a Space Heater?

Anyone who wishes to have a source of heat at home, especially during the cold season, will most likely need a space heater. One thing to take note of is that even if there is already a heating device or system integrated into your home or space, investing in a space heater still proves to provide additional benefits.

It is perfect for you in case you are looking for a device, which can supply supplemental heat. It also works for those who are in need of an energy-efficient and useful alternative to heating systems.

The fact that you have a space heater can give you peace of mind, knowing that you will still have something to use in case the primary heating system in your household breaks down all of a sudden.

A space heater is also a necessity for those who want to keep themselves and their family comfortable and safe during the cold season. Even if your primary heating system needs replacement or repairs, you will have no worries with a space heater around as your alternative.

Buying Guide

If you are seriously thinking about investing in a high-quality and energy-efficient space heater for your home, office, or any other large space, then it is necessary to push yourself to make a wise choice and decision based on these key factors:

Types of Space Heaters

Among things you have to research about once you begin shopping for an energy-efficient space heater are their different types. You have to be fully aware of your available choices, so you can determine which one truly meets your needs.

The different types of space heaters that you have to include in your list of choices include the following:


Ceramic space heaters are among the most popular heating devices in the market today. The main reason behind its popularity is that it is highly energy-efficient. Most ceramic space heaters also boast of their decent functionality, safety, and affordable prices.

This type emits heat through its ceramic element, which is considered to be the safest when it comes to electric-powered heating. It is mainly because of the high-resistance of the ceramic element integrated into the device.

Another thing about ceramic space heaters that you have to be aware of is that they often use an oscillator or fan in blowing air through their ceramic elements. It heats the air as soon as it passes.

Ceramic space heaters are beneficial as the heat they provide is usually focused. The structure is also safe as it is built in a way that it is cool to touch. With the high level of safety provided by this type of space heater, it is perfect for homes with pets and kids.

Forced Air Heaters

Another type you should check out is the forced air heater. The forced heating system works by supplying warmth to your home through the proper distribution of heated air using a centralized network of ducts.

It is, therefore, beneficial as it lets you install a central air conditioner without the need to integrate additional vents or ductwork. Many also like this heating system because of its ability to heat a space quickly.

It also works in a way that it can provide even temperature in various parts of your home. Another thing that this heating system can do is that it filters the air before dispersing it. With this capability, it is safe to say that you no longer need an extra filter.

Another reason why forced air heaters are gaining popularity nowadays is that they are extremely energy-efficient. Aside from that, this heater has the advantage of improving indoor air quality while ensuring that the temperature in your home is comfortable.

Radiant Heaters

You can also choose to invest in any of the radiant heaters available in the market today. This type of heating system operates through infrared radiation generation. It tends to work more efficiently and effectively if you place it in areas close to objects or people that require warmth.

One thing to note about radiant heaters is that they operate whether the room is closed or open. It is because they provide heat directly to objects and people, instead of the air. Radiant heating systems do not also depend too much on blown air when heating.

With that, you have an assurance that they will not result in drafts. This specific fact makes it ideal for use in households with people suffering from asthma, allergies, and other health issues related to breathing.

It is also advisable to choose a radiant heater if you intend to install it in a room that serves a certain purpose. Some examples are bedrooms and bathrooms. Radiant heaters also work well in storage sheds, garages, and basements that require proper temperature control.

Infrared Heaters

Your home can also greatly benefit from installing an infrared space heater. This heating system makes use of an invisible light as a means of supplying heat to a room. It works more effectively in providing warmth to a closed space or area.

It is also extremely energy-efficient because of its ability to convert the majority of electricity to heat. Also, take note that infrared heaters use a hundred percent of their produced heat, thereby ensuring that there is no loss in heat transfer.

It is mainly because compared to other supplemental heating devices, an infrared heater does not heat air. It emits infrared radiation, instead, which directly warms or heats objects touched by the radiation.

Apart from being energy-efficient, infrared heaters also have the advantage of working rapidly. This means that they can heat rooms rapidly. Furthermore, they operate silently because they have no built-in fan, making them perfect for environments sensitive to noise, like the bedroom.

Electric versus Gas Space Heaters

Two of the most common sources of power for space heaters are electric and gas. The question now is which one between the two is better? Find out more about electric and gas space heaters in this section, so you can better decide which one will work for you.

Electric Heater

As the name suggests, an electric heater uses electricity to work. It makes use of the supply of electricity that is already in your home as its source of power. You can integrate it into your central heating system.

Alternatively, you can also choose to use it on its own. The good thing about most electric heaters is that they operate with zero combustion. It means that the device does not release by-products and particulates into the air.

If you intend to go for electric heaters, then be aware that your choices often include the radiant heater and the convection heater. The radiant heater features heated elements while convection heating systems use fans to distribute heat.

If you prefer this type, then you have to be sure of the specific kind of electric heater that suits your needs. Radiant and convection heaters work for you if you only want to have limited energy consumption.


A lot of homeowners prefer using electric space heaters over the gas-based ones mainly because of their portability. It is one of the major advantages of electric heaters. The fact that they are portable and compact makes it easy to use.

It is also safe to use considering the many safety features often integrated into the unit. Another great advantage of electric heaters is that they are clean. It is because they do not generate smoke when used, making them ideal for large indoor and enclosed rooms.

Moreover, it gives you options when it comes to installation. For one, you can mount it either on the ceiling or wall depending on which one is more convenient for you.

Other Considerations

However, there are also other things you have to consider about electric heaters before choosing it over the gas-based ones. One is that it is not as energy-efficient as gas heaters.

Another thing you have to take note of is that electric space heaters are often costly to maintain and operate. Aside from that, you will be unable to operate it during power interruptions.

When there is a power outage, you will be unable to take advantage of the heating no matter how cold or bad the weather is. If your location is prone to power interruptions, then it would be best to go for gas heaters.

Gas Heater

Another fantastic choice for a space heater is that which uses natural gas as its source of power. It is a good choice for budget-friendly users considering the fact that running it is inexpensive.

One thing that gas heaters can do is generate air temperatures, a max of 25-degree warmth. It allows it to supply warmer heat in comparison to electric-based heaters. The average temperature that gas heaters provide to a living space is around 110 to 120 degrees.

If you choose the gas heater, then note that one option you have is the fixed model. It is not that portable, but it works by connecting it to a gas line. It supplies heat via the natural gas process.

In most cases, the installation of the fixed type requires professional help. You can also go for the portable types. Portable gas space heaters are small and compact, promoting ease in transporting them. Expect these units to burn propane gas or oil.


There are several benefits linked to using gas space heaters. One advantage is related to the cost involved in operating it. It is less expensive compared to electric heating since it allows you to save on energy.

Natural gas costs less compared to electricity, which is why gas heaters are famous for their energy-efficiency. Another advantage of gas heaters is that they are highly reliable. In most cases, the pipelines required for the supply of natural gas are installed underground.

With that, they are fully protected from harsh weather and other untoward incidents causing electric outages. It means that you have a constant supply of heat even during those instances when electric heaters can no longer function due to power interruptions.

Other Considerations

Even with the numerous advantages of gas heaters, it is also important to consider that it is often larger and more complex compared to electric heaters. It is the reason why it requires the help of a professional for its installation.

The installation of gas heaters requires you to use flue or chimney, which is helpful in venting emissions from combustion. The installation cost is also higher compared to electric space heaters.

Fortunately, you can get back a return on it once you start enjoying huge energy savings. Safety is also a concern in gas heaters as it is prone to causing carbon monoxide leaks. It would be best to have a carbon monoxide detector to detect such leaks right away.

Room Size

Another important consideration when on a hunt for the most energy-efficient space heater for your home is the room size. This means the size of the room where you plan to have your chosen device installed.

Have an accurate measurement of the room where you wish to install it. Once you have this measurement, you will have an easier time picking a unit that has the right amount of power for it.

Also, keep in mind that higher heat output means that more energy will be used. If the space in your room is only small, then you may need to invest in a heater with 750-watt power. Larger ones require the power of at least 1,500 watts.


Shopping for a high-quality space heater also requires you to study the most popular brands offering this product. Note that with the many brands promising quality results for their devices, you may be confused as to which one to choose.

Fortunately, it is not that hard to find the best brand of energy-efficient space heater today since you can now easily gather information about the units. As much as possible, read reviews posted by different people about certain brands.

Find out what others are saying about the product, including their complaints. That way, you can determine which one earned the trust of many. Go for the most trusted brands as such can somewhat assure you of great quality.


Since you will be using a device, which serves as a source of heat, make sure that it is completely safe before buying. Keep in mind that if you are not careful and go for a low-quality one with a questionable level of safety, then it is possible for the device to cause fires.

To ensure the safety of the device, find out how hot its surface gets to the touch. Check the length of the cord, too. It should be enough to help you put the device safely and securely out of the way.

Another thing that will assure you that it is completely safe is if it has a UL or CSA certification. Aside from that, the device also needs to have a feature, which shuts it off automatically if it tips, falls, or overheats.

Check and assess the safety features integrated into the unit and find out if they are indeed helpful. Also, take precautions to avoid fire when using the unit. One of the things you can do is to ensure that flammable items, such as bedding and clothes, are at a safe distance away from the device.

Top 3 Considerations When Buying Energy-Efficient Space Heaters

  • Amount of Space to Heat – The first key factor to keep in mind when shopping for an energy-efficient space heater is the amount of space you will be heating. Stay away from heaters that are too powerful for the available space as it might only cause you to open doors and windows to control the temperature.

    However, the power should not be insufficient, too, that it can no longer heat the available area properly. Get the right balance between the two.

  • Efficiency – After figuring out the specific amount of space that requires heating, it is time to check out the different heaters available to you. Find out how efficient your choice is by identifying whether its size is appropriate for space or room.
  • Fuel Required – You should also make your choices from the many heaters in your list by comparing how much fuel each one consumes for power. Make sure to go for one with a type of fuel available in your place. There should be an abundant supply of this fuel while also being available at a cheap price.


Finding the most energy-efficient space heaters is not that difficult to do if you just arm yourself with the right information. The knowledge you gained through proper research will surely guide you in making a wise selection.

By selecting the best out of the many energy-efficient space heaters introduced to you, you will be able to use a heating device which can add enough warmth to your home without significantly increasing your energy bills.

Use the information in this article as your guide during the time you start shopping for a good space heater. Keep in mind all the key points discussed here once it’s time for you to select one.

Among those factors you should never forget to keep in mind are the amount of space that requires heating, location, and type of fuel. Read reviews, too. Your goal is to be more well-informed so shopping for a high-quality and energy-efficient space heater will be a lot easier.

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