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5 Top Energy Efficient Space Heaters

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During the winter months, there’s nothing better than an energy efficient space heater. This list includes the best energy efficient space heaters on the market, and it includes heaters with a range of heat outputs. No matter if you intend to find a space heater for a small room or a huge one, there will be a heater on the list for you.

Our number one recommendation goes to the AirNmore Comfort Deluxe Space Heater. This heater has several built-in safety precautions, like Touch Safe technology and heat sensors to ensure it’s always safe to use in your home. The two heating elements of 1500 W and 1000 W allow you to select which temperature you’d like, making it easy to get the heat levels just right.

The above space heater is made for larger rooms. If you just need to heat a smaller room, then we recommend the GiveBest Portable Electric Space Heater. It’s the smallest heater on the list, and it’ll easily fit in whatever room you need. In addition, it provides a fantastic heat output of 1500 W and 750 W. This is also the only heater on the list that can be used as a fan. If you don’t have a lot of space, you won’t be able to find a better space heater.

The three other space heaters on this list will work in a range of room sizes. The best space heater for you will depend on the size of the room you’re trying to heat up. Additionally, we’ve varied the style of these designs, so you can find something that will fit neatly into your home aesthetic.

5 Top Energy Efficient Space Heaters

5 Top Energy Efficient Space Heaters

Best Overall

AirNmore Comfort Deluxe with Copper PTC, Infrared Space Heater with Remote Control

Product Details:

  • Heat limit sensors
  • Safe Touch technology
  • 1500 W and 1000 W
  • No heating bulbs
  • Remembers previous settings
  • Two-year warranty
  • 16.5 L x 13 W x 16.75 H inches

The AirNmore Comfort Deluxe Space Heater is completely safe to use. Its double high-limit sensors ensure that it stays the correct temperature. The Touch Safe technology ensures that the outside of the heater will never get hot, so you can move the product without burning yourself.

It has a three-pin power cable, which is suitable for a 1500 W heater. And, since the space heater doesn’t use bulbs, you’ll never have to replace any of the heating bulbs. In addition, you’ll save money since won’t need to spend on replacement and maintenance costs.

This space heater comes with two options: 1500 W and 1000 W. This allows you to choose how hot you’d like your room to be. Also, when you turn the heater off, it will remember the setting you last had it on, and it will heat back up in seconds when you turn it on again.

The space heater comes with a two-year warranty. It measures 16.5 L x 13 W x 16.75 H inches.

Best Energy Efficient Electric Heater for a Large Room

Amazon Basics Eco-Smart Portable Space Heater

Product Details:

  • LED screen
  • Adjustable temperature
  • Heats up to 1000 sq. ft. room
  • Remote control
  • One-year warranty
  • 11.42 L x 14.53 W x 14.72 H inches

This classic black space heater comes with an adjustable thermostat. The LED screen shows the heater’s current temperature. And, you will be able to adjust the temperature from 65-85 Fahrenheit.

As a safety precaution, this heater also includes an overheating sensor that monitors the four internal heating elements, which range from 750 W to 1500 W. The product can heat a room up to 1000 square feet with ease.

The product comes with a remote control and a one-year Amazon Basics warranty. It measures 11.42 L x 14.53 W x 14.72 H inches.

Most Affordable Space Heater for Medium-Sized Rooms

Lasko Vertical Electric Radiator

Product Details:

  • 1500 W
  • Rotates on central axis
  • Remote control
  • Three heat settings
  • 8.5 L x 7.25 W x 23 H inches

The Lasko space heater has a central heating element of 1500 W. This gives it enough power to heat medium-sized rooms up to around 400 sq. ft. You’ll be able to select a high, medium, or low heating setting.

It rotates on an axis, continuously distributing heat throughout a wide area. The space heater has touch control and comes with a remote control.

While this product is cheaper than others on the list, it will not heat your home as efficiently as other models on this list. The product measures 8.5 L x 7.25 W x 23 H inches, making it the tallest on the list.

Best Portable Space Heater for Small Spaces

Portable Electric Space Heater with Thermostat by GiveBest

Product Details:

  • 1500 W and 750 W
  • 0-158 Fahrenheit
  • Cooling fan option
  • Covers 200 sq. ft.
  • 45 dB noise
  • 7.9 L x 6.2 W x 10.2 H inches

If you have a small space to heat up, this compact space heater will do the job. It has two heating elements: 1500 W and 750 W. It also has a cold air fan for use in summer. This is the only space heater on this list to also offer a cooling system, making it more versatile than the other models.

You’ll be able to adjust this heater from 0 to 158 Fahrenheit to make sure the room is exactly as you’d like it. The heater is also very quiet and only emits 45 dB of noise. This is quiet enough to use when you’re sleeping.

The heater measures 7.9 L x 6.2 W x 10.2 H inches, making it the smallest on the list. It will heat up a space of up to 200 sq. ft. in seconds.

Best Space Heater with Fan

Vornado Heat Eh1-0096-43 Personal Radiator

Product Details:

  • 11.7 L x 9.3 W x 12 H inches
  • 5-year warranty
  • 1500W or 750 W
  • Up to 200 sq. ft.

This personal radiator has two heat settings: 1500 W or 750 W. This makes it great for rooms up to 200 sq. ft. And, with cool-touch exterior technology, it will never feel hot to the touch.

This heater measures 11.7 L x 9.3 W x 12 H inches and it has a 5-year warranty.

Buying Guide

How to pick the best energy efficient space heater

When picking a space heater, you need to consider the size of your room. If you have a large room, then you need to opt for a more robust space heater. Measure how large your room is in square feet. Then, you’ll be able to work out how many W your space heater will need.

While we’ve included more specific calculations below, the general rule is every 10W = 1 sq. ft. covered efficiently.

Measure how many sq. ft. your room has, then multiply it by 10 and that’s how many watts you need.

What makes a space heater energy efficient?

There are two main aspects that make space heaters energy efficient. First, the majority of space heaters, and all of those included on our list, contain multiple wattage settings. This will allow you to select a lower wattage and warm your house up slower, while saving energy.

Additionally, due to the range of thermostats and heat regulators that come with space heaters, you can choose a temperature and then maintain it. Instead of blasting out heat, your space heater will carefully maintain the room’s temperature.

Over time, this will save energy and ensure you can cut back on your utility costs.

How should you prepare your room for a space heater?

You’d be surprised to know that, while space heaters are incredibly safe, their misuse can lead to dangerous situations. One way around this is to buy space heaters with safety features. All the heaters on our list are made to resist overheating and will deactivate if their internal core temperature reaches a dangerous level.

However, there are also some general rules to follow if you want to place your heater in the perfect location. First, make sure to place the space heater directly on the floor. This means you don’t want to put it on a rug, on your bed, or on a towel. Put the heater on a smooth, flat floor space and leave it there.

You should also keep your space heater away from water. Don’t place the heater next to your sink or the bathtub, for example. Wet locations could lead to an electrical short circuit, which may damage your space heater and lead to a fire.

Additionally, you’ll want to avoid putting flammable objects within 3-feet of the space heater. Things like curtains, newspapers, cushions, and bedding are all flammable and can catch fire if they become too hot. Try to keep anything that’s flammable as far away from the space heater as possible.

Finally, do not leave the room when the space heater is on. If something were to happen, those initial moments are the difference between managing the situation and having to deal with a severely escalated problem.

How many watts does a space heater need to have for sq. ft. sizes?

The general rule when it comes to space heaters is that every 10 watts of heating power will cover one square foot of your room. Of course, every room is different, and this number will not be 100% accurate.

In general:

  • 750 W – 75 sq. ft.
  • 1000 W – 100 sq. ft.
  • 1500 W – 150 sq. ft.

These measurements are a little on the lower side. While a space heater of 1500 W will quickly heat a room of 150 sq. ft., it can also manage spaces up to 200 sq. ft.


This list contains our picks for the 5 top energy-efficient space heaters. We’ve chosen heaters that will work in a range of room sizes, giving you the flexibility to choose something perfect for your home.

If you want our top pick, then you can’t go wrong with the AirNmore Comfort Deluxe. This heater comes with two heating elements. It has built-in safety features that ensure the outer shell never gets hot. Additionally, it comes with a two-year warranty, so you can use the fan with total financial security. The easy-to-use front panel also allows you to choose the exact temperature you want.

This fan is best for larger rooms, so if you’re looking for a smaller option, check out one of the other fans on the list.

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