The 9 Best Energy Efficient Space Heaters for Warmth in Winter


Winter is coming! And you might be wondering how you’ll battle the dreadful cold. Don’t fret. You should consider picking one of the best energy-efficient space heaters.

But how? There are so many options it can be overwhelming. Even worse, it can be frustrating when your space heater order arrives without the features you need.

Again, don’t agonize. All you need to know is what to look for in a space heater, and you’re set for those cold winters.

Things to Consider When Selecting an Energy-Efficient Space Heater

Before purchasing anything, there are always things you’ll need to consider. It’s not any different even when choosing from the best energy-efficient space heaters. Here are some factors you need to consider.



​Image Source:

It’s quite weird to include energy-efficiency as a factor when talking about the best energy-efficient space heaters.

Many appliances come with an Energy Star Rating that indicates how energy-efficient they are. However, for space heaters, more factors (which we’ll discuss below) are in play. For now, you can refer to this energy calculator to determine energy-efficiency.

Most of the best energy-efficient space heaters include an energy-saving mode. Also, you should consider insulating your home so you can have lesser heating needs.

Heater type

Heater types are described according to their heating mechanisms.



​Oil-filled radiant heaters

Heating method


​Image Source:

Knowing what forms of heat transfer that a space heater uses is paramount when selecting one of the best energy-efficient space heaters.

Some heaters transfer heat directly to near objects and people, while others warm a large space. Your choice of either depends on your needs.




Heat coverage

Now that you have an idea about space heaters, it’s time to relate heat coverage to your space size to determine what you’ll need.

Although there are manufacturer variations, typically, a tenth of the wattage indicates the square foot size that a space heater can warm efficiently. That means, 1200W (watts) heater power can serve a 120 square feet space, in general.



​Image Source:

Space heaters come in different styles and designs that you might find useful.

Wall designs are the top best energy-efficient space heaters due to their ability to use less space. They’re perfect for zone heating particular cold spots like the basement and bathrooms. Also, they can be concealed for children’s safety.

Freestanding portable space heaters are the most popular space heaters for one main reason — portability. Ceramic and the oil-filled types are the most common due to their safety.

Space size vs. heater size

We generally can describe these heater sizes with their usage. There’s the personal space heater that can serve someone in a cubicle at work.

A larger size than the personal space heater could heat a 70 square foot room while the largest can serve a 150 plus square feet room.

Most of the best energy-efficient space heaters keep their size proportionality to their heating coverage. That means that if you run a 1200W space heater in a 50 square feet room, you’ll be wasting a lot of power.

Regulation options

Thermostats are a vital feature for heat regulation in space heaters. There are programmable and adjustable thermostats.

Programmable thermostats enable you to set the temperature you desire. It prompts the heater to turn on and off at times to maintain that temperature.

Adjustable thermostats let you choose your desired temperature from their low to high options. They maintain the temperature concerning the environment hence adjusting from time to time


Certification is the first feature to look out for. Search for a UL mark (Underwriters Laboratories), ETL label, NTRL mark, or certification from CSA International to ensure that the space heater isn’t faulty or hazardous.

Shut off features like an automatic smart sensor that shuts off in case of overheating is crucial. On top of that; a tip-over switch is paramount to ensure the same when a space heater tips over.

A robust cord is also necessary to avoid overheating. A Ground Fault Circuit Interrupter (GFCI) plug is an excellent feature for preventing electric shock. But, in case your space heater doesn’t come with it, use it in damp-free places.

You need to purchase fire prevention plugs with every space heater you buy. You might also want to check these space heater safety measures for more insights.

Other features

  • ​Bathroom friendly
  • ​Low noise level
  • ​Heat-resistant exteriors
  • ​Remote control

​How We Reviewed the Best Energy-Efficient Space Heaters

We reviewed these space heaters after thorough research on specs, both online and offline. We involved experts as well.

After checking out authoritative sources, we dug deeper into comment reviews. We assessed varying customer experiences while weighing in factors that affect energy-efficiency in a space heater.

After extensive research and analysis of experimented space heaters, we came up with these nine best energy-efficient space heaters with high ratings.

​The 9 Best Indoor Energy-Efficient Space Heaters

Here are our top-performing picks of the best energy-efficient space heaters for indoor warmth.


KOOLWOOM Infrared Electric

No products found.

I just had to start with this highly-rated KOOLWOOM Infrared electric space heater. It’s stylish, safe, and techy.

If you like a fireplace styled, energy-efficient space heater, KOOLWOOM will fit your heating needs. And the best part is:

This product is rated 5.0 out of 5 stars on Amazon.

Specs and features

This heater uses an Infrared heating element which is electrically heated. Through its three modes: high, medium, and low, you can set your temperature preferences.

In addition to the adjustable thermostat, you can make use of the 12-hour timer for on and off auto-operations.

This space heater features a heat resistant wooden exterior, wheels, and air filters that need three-month cleaning intervals. It also includes a clear LED display screen plus remote control with a one year warranty.

Last, are its safety features which include tip-over plus overheat protection and ETL, CSA, UL listing.


  • ​Portable and easy to clean
  • ​Energy-efficient with adjustable energy-saving modes
  • ​Safe and easy to control
  • ​Cool to touch
  • ​Clear LED screen for a perfect remote-controlled heating experience


  • ​None reported so far


​Lasko 6435 Designer Series

No products found.

This Lasko Designer series space heater isn’t just a look-alike; it’s a piece of art. It will blend with your décor effortlessly, and few will guess that it’s a space heater. Even better, it’s energy-efficient with an oscillation system that quietly warms your space.

If you like this space heater’s style and the low heat setting is warm enough, you’ll run this bad boy without feeling the cost. This product is rated 4.4 out of 5 stars on Amazon.

Specs and features

Lasko 6435 Designer Series uses a 1500W ceramic heating element. With an adjustable thermostat and a built-in seven-hour timer (one-hour interval flexibility) for automatic shut off, heat management is a breeze.

Even better, the overheat protection and heat resistant exterior assure your safety.

The oscillating feature is another highlight about this heater. Also comes with LED display with remote control and one year warranty.


  • ​Beige stylish body blends with your décor effortlessly
  • ​Energy-efficient small space radiant heat supplement
  • ​The quiet oscillating function enables fast and even heat distribution
  • ​Durable build
  • ​Portable, safe, and space-conscious
  • ​No assembly needed


  • ​Needs the use of fire prevention plugs unless using a heater dedicated outlet


​Honeywell HCE317B Tower

No products found.

If you like a slim design, a handle, and cool-touch housing, this Honeywell HCE317B Tower is your perfect cozying companion.

This product is rated 4.5 out of 5 stars on Amazon.

Specs and features

This slim tower heater uses a ceramic heating element, low heat to high heat settings ranging from 750W to 1500W and an eight-hour timer with a programmable thermostat. With its heat resistant exterior and thermal-insulated wiring, you can bet on your safety.

Similarly, the overheat and 360-degree tip-over protection promote desirability.


  • ​Safe and energy-efficient.
  • ​Slim figure with a sturdy base for beauty and support.
  • ​Oscillating feature for even heat distribution.
  • Programmable thermostat with desirable temperature settings.


  • ​Doesn’t have a remote.


EdenPURE CopperSMART 1000

No products found.

EdenPURE CopperSMART 1000 is uniquely built with 4.5 square feet of copper surface area. That, combined with the PTC heating element, provides sufficient warmth without dehumidifying or reducing oxygen in the air.

If you fancy a fireplace style and safety in a heater, this pick of the best energy-efficient space heaters suits you.

This product is rated 4.4 out of 5 stars on Amazon.

Specs and features

This heater uses Copper PTC (Positive Temperature Coefficient) heating element. It has 24 heat settings to satisfy varying warmth preferences, therefore, providing vast temperature and power ranges.

You can be confident about its safety, given its dual high limit safety sensors, tip-over sensor, a touch-safe grill, and ETL label. Remote controlled heat settings, lifetime filters, and wheels guarantee its comfort and portability.

This space heater includes a one-year manufacturer warranty.


  • ​Durable heating element and build.
  • ​Energy-efficient.
  • ​Doesn’t dry out the air.
  • ​Quiet, safe, portable, and easy to move around.
  • ​Convenient remote control.


  • ​Needs fireplugs after six months of continuous usage.


​DONYER POWER 14” Width Mini Electric Fireplace

No products found.

The DONYER POWER 14” Width Mini Electric Fireplace is the ultimate description of beauty with function. European palace fireplaces, with a combination of flexible modern aesthetics, inspire its design.

It’s famous for its fireplace look setting even when the heating feature is off. This product is rated 4.4 out of 5 stars on Amazon.

Specs and features

This electric fireplace has three switches for ornamental (no heat with flame jumps display), low, and high heating. Its metal body material is cased to provide overheating protection. Also, regarding protection, it features a one year warranty.


  • ​No need for installation
  • ​Energy-efficient
  • ​Easy controls and portability
  • ​Durable


  • ​Mild smell during the first time of usage
  • ​No remote control


​AmazonBasics 500-Watt Small Space Personal Mini Heater

No products found.

This AmazonBasics mini heater is one of the best energy-efficient space heaters for cubicle workplaces. This heater can be placed anywhere from your feet to the corner of your desktop. It’s quiet and warm; you can even use it in a library.

This product is rated 4.4 out of 5 stars on Amazon.

Specs and features

Uses fast heating ceramic coils yet provides a cool to touch exterior. Additionally, it has a sturdy base, tip-over protection plus automatic switch off when picked up or on an unlevelled surface.


  • ​Heats a small space in seconds
  • ​Energy-efficient
  • ​Comes in four colors to cater to varying preferences
  • ​Quiet


  • ​Unsafe near paperwork or flammable material something quite inevitable considering its use
  • ​Has only one temperature setting


​Heat Storm HS-1000

No products found.

Would you like a space heater that you can control from your phone? Well, this Heat Storm HS-1000 Infrared heater has techy features that might interest you. It’s a unique product on our best energy-efficient space heaters list due to its Patented HMS dual technology.

This product is rated 4.0 out of 5 stars on Amazon.

Specs and features

This space heater uses an Infrared heating element with patented HMS dual technology for energy-efficiency. It has a wall-mountable design plus WiFi feature for connection with a phone. It is also safe to touch, and ETL certified.


  • ​WiFi feature enables remote controlling for more than one unit
  • Inconspicuous and takes a small space
  • ​Energy-efficient
  • ​Portable and safe


  • ​Only advised to install on an interior wall

​The Best Patio Energy-Efficient Space Heaters

Enough about indoor heaters. We picked two best energy-efficient space heaters for chilly outdoors.


​AmazonBasics Commercial Outdoor Patio Heater

No products found.

​This AmazonBasics outdoor heater may be built with commercial setups in mind but works excellent for residences too. This product is rated 4.0 out of 5 stars on Amazon.

Specs and features

This outdoor space heater uses an LPG heating element and piezo ignition system. It comes with a chain for securing an LPG tank to produce 46,000 BTUs output. Additionally, it features a water box base for increased stability and wheels for mobility. Its aluminum and rugged steel build with a powder-coated brown finish ensure its durability. It also includes tip-over protection and one-year limited warranty.


  • ​Robust build that withstands harsh outdoor elements
  • ​Stable and portable
  • ​Easy to assemble


  • ​Requires an LPG tank but doesn’t include it


​Muskoka Lifestyle Products 1500W heater

No products found.

The Muskoka Lifestyle Products 1500W space heater is one of the multi-purpose space heaters. One thing that makes this heater stand out is it’s additional health benefits.

Its infrared (not ultraviolet) rays have been used by doctors to treat acne successfully.

This product is rated 4.1 out of 5 stars on Amazon.

Specs and features

This 1500W heater uses Infrared heating element to give out energy-efficient maximum warmth. Plus, it has a weatherproof IP65 rating, and ETL, ROHS, CC, and CCE with UL listed cords. That’s to say; it can withstand significant harsh external conditions.

With their adjustable wall mount brackets, you can hang them safely and use the remote control to set desired temperatures.


  • ​Flexible usage
  • ​Energy-efficient
  • ​Operates silently yet fast
  • ​Robust build stands up to harsh weather conditions
  • ​Many customers applaud their customer service


  • ​Must be fitted eight feet above the ground for children safety

​Choosing from the Best Energy-Efficient Space Heaters

Choosing an energy-efficient space heater that suits you can be a daunting task. But it doesn’t have to be. All you need is an idea of what to look for while scrolling up and down the best energy-efficient space heaters list.

And don’t ignore the instructions that come with any of these heaters. They’ll make your experience hassle-free and keep your claim to warranty intact.

One more thing: Don’t forget to come back here to share your experience. It will help someone else who wants to purchase a space heater.


Please enter your comment!
Please enter your name here