Most Energy Efficient Space Heaters Reviews In 2020 – Buyers Guide


A warm and cozy home is desired by everyone. You also want to create warmth for your home as cheaply and effectively as possible. Many people choose space heaters to add more warmth and reduce the cost of operating a central heating unit. Other people use space heaters as their only source of heat in their homes.

So, what is the most energy efficient space heater? "Any space heater having utility bills that are not too expensive" is the answer. We asked a group of volunteers to try several space heaters and tell us which ones worked the most effective and which ones cost the most to operate.



1. Lasko 5790 Oscillating Ceramic Tower Heater

The blower on this oscillating heating unit allows the warmth to be projected away from the heater so you do not have to sit right on top of the device to be warm.

This device can be operated by controls on the unit or by using the convenient remote control.

It has two settings that allow you to choose from 900 watts of heat output or 1500 watts of heat output. It also has a timer that you can set to turn the unit on or off.

You can have the heater turn on and heat a room just prior to you returning from work. That means the heater does not have to run all-day and use as much electricity in order for you to be comfortable when you get home.

The safety precautions designed into this device are the latest and most advanced possible. It will not overheat and cause a fire because it is programmed to power off it starts to over-heat. It is also designed to remain cool to the touch so it will not cause a contact burn.

This device weighs less than eight pounds and can easily be moved from room to room, or stored in the warmer months.


2. Heat Storm Phoenix Energy Efficient Small Space Heater

Two heat settings on this powerful yet compact heating appliance will allow you to have the ultimate control over the temperature in the room and fuel consumption of this device.

In the highest setting, it can produce 1500 watts and on the lower setting, it will produce 750 watts. It can be used as the primary heat source in a small room or as an extra heat source in a larger area.

This unit is cool to the touch device that is safe to use around children, pets, and upholstered furniture or carpeting. 

This unit is versatile and can be hung on the wall or set on the floor or table. It has feet that create a stable stand so it can stand alone but you can remove those feet and hang the unit on the wall to free up more floor space. It is also small enough to stand on a table in the room to bring the heat higher into the area.

It has a built-in thermostat and the temperature setting is displayed on the LED screen. It has a remote control so you can set the device from the comfort of your chair.


3. Honeywell Slim Energy Saving Tower Space Heater

This tower heater has a programmable thermostat so you can control the exact temperature of the room.

It also has a timer that can be set to power the device off after intervals of 1-hour, 2-hours, 4-hours, or 8-hours. 

You will not have to worry that you will fall asleep and forget to turn the unit off, or leave the home and forget to turn the device off.

The exterior of this device remains cool to the touch and will into cause a contact burn or fire hazard if touched. It is safe to use around children and pets. It also has an over-heat technology designed in it that shuts the unit off if it overheats.

It has a convenient carry handle and since it remains cool to the touch you can move it even after it has been in use for several hours. The handle is recessed and does not cause the unit to be taller. The recessed handle also will not detach or break. The device weighs less than 10 pounds so it is light and very easy to move.


4. Comfort Zone Efficient ECO Oscillating Space Heater

This heating device provides fast and efficient heat for your room. It has a digital thermostat and a LED screen that displays the exact temperature setting the unit is working at.

When the air in the room reaches the desired temperature, the device will automatically shut off and save you electricity.

You can program this device to automatically shut off after an eight-hour period. You will never worry about leaving home and forgetting to turn the heater off. It also will allow the unit to be more energy efficient because it will not run while you are not there.

The remote control that comes with the device allows you to adjust the temperature setting without getting out of your chair or the bed. It is an oscillating heater that projects the heat away from it so everyone in the room can benefit from the heat.

This is a great appliance for homes with small children. It remains cool to the touch and can be set on one of two heat settings so it can heat an entire room or add heat to save energy by reducing the amount of time the central unit is running.


5. Pro Breeze Energy Saving Under Desk Space Heater

This device has three operating modes. It can produce as much as 1500 watts when used on the high setting so it can actually be used as the primary heat source in a room that has as many as 150 square feet. 

This is a small and compact device that can be set on a desk or table, or it can be sat on the floor. It is perfect for a bedroom, dormitory, office space, or anywhere in your home. It does have a fan that propels the warmed air out into the room so you can position it farther from you and still benefit from the heat.

It has safety features that include an anti-tip feature. If the device were to be knocked over while it is operating it will automatically shut down. It will also automatically shut down if the unit is overheated.

It remains cool to the touch and can be sat closer to items and will not burn you if you accidentally come into contact with it while it is operating. It is safe to use around children pets and the elderly.


6. Dr Infrared Heater Portable Space Heater

This heater is very quiet while it is in use. That makes it perfect to use in bedrooms, nurseries, dorm rooms, offices, and living rooms. It has a 39 dB rating.

The device is small and compact but is also on wheels to make it easier to reposition in the room.

You get to choose between high, medium, and low heat settings. It has a thermostat that lets you set the device to keep a room at a precise temperature. There is a large LED display screen that displays the current thermostat setting.

When the unit has created the right temperature in the room it will stop heating and use less electricity. When the temperature dips below the setting then the heater automatically turns back on.

This device has an automatic twelve-hour shut off timer. You can go to sleep, go to class, or leave the home and the device will power off after 12 hours has elapsed.

The filter in this unit never needs to be replaced. You will periodically clean it but you do not have to replace it.


7. Mr. Heater MH9BX Portable Low Energy Radiant Heater

This little powerhouse of a heater has the ability to warm a room that has 225 square feet. It can produce between 4,000 BTU and 9,000 BTU of radiant heat depending on what heat setting you have it working on. The device is 100% efficient because it turns 100% of the propane it uses into warmth for your room.

The regulator on this device is a swivel out. The swivel out regulator allows the device to be operated with the small one-pound disposable propane bottles or the larger 20-pound propane bottles. 

That gives you the freedom to take the device with you when you go camping or want to heat your patio or backyard for a gathering.

This device can be used indoors if you provide proper ventilation. Propane fuel creates carbon monoxide so adequate ventilation is required when you use this item indoors.


8. De'Longhi 2 Heat Settings Panel Heater

This heating device will heat up to 150 square feet. The unit is thin and versatile. It has feet and casters that make it perfect for positioning on the floor or even on a tabletop in your home, office, or dorm room.

You can also remove the casters and the feet and install this as a wall-mounted device so it takes up less space.

The panel heating unit is completely portable and even has a carry handle designed on it. It remains cool to the touch so it is not a fire hazard and will not burn you even if you move the device after it has been operating.

It easily plugs into a common electric household outlet using the attached corded plug. It has controls on the end and it is very quiet while it is working so it will not disturb anything you are doing.

This device is safe to use around children and pets. It has anti-tip technology that powers it off if it is knocked over. It also has over-heat protection that powers it off if it is over-heated.


9. De'Longhi EW7707CM 3 Energy Efficient Space Heater for Large Room

This oil-filled radiator heater has the classic design that we all recognize. Because it is an oil-filled heater it is more efficient at warming larger spaces and maintaining the heat properly. 

The device has manually controlled settings that tell it when to power itself off to make the most of the energy it consumes.

When the temperature drops below the desired setting the unit will return to operations and maintain the proper heat.

This is a cool to the touch device that is safe to have in your home, around your children, and close to upholstered furnishings. It is conveniently mounted on wheels so you can move it around the room and reposition it without having to lift the device off of the floor.

The oil-filled unit is very quiet while it is being used and will not make loud noises that will awaken you when you sleep. It has tip-over safety built-in so it will automatically shut off if it were to be tipped over. There is no maintenance required to operate this durable unit.


How To Pick the Most Efficient Space Heaters


If you are considering a space heater for your home or office you want to be able to get the most efficient and effective heater for your needs. To make sure that you buy the right device take the time to make a list of what size room you want to heat, the square footage in that room, and whether the heater will be the only heat or used as a supplemental heat source.

Then read the heater descriptions and use the following guide to help you pick through the features and descriptions. Check the heater features against your needs, and make a pros and cons list to consider.

Programmable Thermostats

When a heater has a programmable thermostat, you decide exactly how warm or cool the room stays. You can set the thermostat a little lower and cause the heater to not run as long. These heaters will automatically shut down when the temperature in the room meets the thermostat setting.

Heat Settings

When a heater has more than one heat setting it will produce a multiple of watts. The lower settings produce fewer watts and it cost less to operate the heater on lower settings. Get a device that has at least two settings, but three is optimal.

Larger Areas

The oil-filled space heaters are more efficient at heating larger rooms. If you need to heat a small space then the infrared heaters are more energy efficient. You have to judge the heater you choose by the way you will be using the device and determine what variety of heating appliance will do the job you need to be done.

The Heating Elements in the Devices

Different heater types use different heating elements.

Ceramic heaters have elements that work very quickly to warm the room. They are small and can easily be moved to another room if you need to.

Infrared heaters are not as durable as ceramic heaters and will only give you service for about 5,000 to 7,000 hours. The heat they create warms the objects around them and those heated objects increase the temperature in the room.

Oil-filled heaters

These units distribute the heat more evenly and even when the unit is switched off the device keeps radiating heat.


Safety Tips for low-cost energy-efficient heaters


Safety is the primary concern with any heating appliance. You want to make certain that the device you have is not going to pose a threat to your home or family. The latest technology is improving the safety of all heating units, but there are certain things you can do to make sure that your heater does not cause a fire or a severe contact burn.

  • When you buy a new heater look for the Underwriters Laboratory insignia on the label. The tag will have UL on it and that tells you that the unit meets regulations and safety protocols.
  • Use the proper size heater. Do not use a heater that is far larger than what you require in your space.
  • Always place the heater on a level area so it is less likely to tip over.
  • Keep the electrical cord that is attached to the heater positioned so it will not trip anyone walking through the room
  • Never leave children or pets unattended in a room with a heater in operation.
  • Never place anything on top of the heating unit.
  • Position the device so that it is far enough away from flammable materials that it cannot cause spontaneous combustion.
  • Never use an electric heater close to an open gas can
  • Position the heater at least 6 inches away from any wall, furniture, or drapery
  • Always plug the device into a wall outlet and do not plug it into an extension cord. In the event that you have to use an extension cord make sure that it is a heavy-duty cord of at least 14-gauge wire, and use the shortest cord possible.
  • Keep the appliance free of dust and dirt particles
  • Do not set the unit on top of the carpeting
  • Never transfer or move the device while it is powered on

Energy Efficient Infrared Heater vs Oil Filled Heater


Infrared heaters are designed to heat more quickly than the standard oil-filled unit. Oil heaters are designed to heat rooms more evenly and can usually be used as the primary source of heat in a room due to their strength.

Infrared Heating Appliances

  • These appliances are made to heat quickly and they are very efficient at heating small areas in a short amount of time.
  • Compared to most other electrical heat sources the infrared devices are 40% more energy efficient. The big problem is they are simply not designed to heat larger rooms or areas.
  • These devices are more portable than the oil-filled styles because the oil-filled units are larger and heavier
  • No maintenance is required to keep the heater functioning
  • They come in a wider variety of styles, shapes and colors
  • They are easy to store in the summer months

Oil Filled Appliances

  • Oil-filled heaters are capable of providing a more even distribution of heat than the infrared units do. This makes it possible for an oil-filled device to heat a larger area and maintain that heat.
  • Oil-filled units do not have to run as long as some other heaters so they are efficient at using their electric, but infrared devices actually make better use of their fuel consumption.
  • These appliances may cost more than the infrared style
  • They cannot be used outside because the wind will move the warmed air away from where you want it
  • These devices are safe to touch when they are in operation so they are safer in homes with children or pets

Frequently Asked Questions


1. Do oil-filled heaters use a lot of electricity?

An oil-filled is more energy-efficient than many other electric heater styles because they do not have to run as long to produce the same amount of heat. These devices usually have two or three settings and if they are operated on the low or medium settings, they will consume less electricity than when they are operated on high.

2. Is micathermic efficient?

Mica thermic, or mica panel heaters are the most efficient electric heaters available today. 100% of the electricity they take in is converted into heat for your space.

3. How efficient is an electric heater?

These heaters are very efficient at converting the electricity they require for fuel into heat. The amount of heat these units produce will be determined by the style of heater, size of the heater, and age of heater.


Final note


If you want a space heater that you do not have to sit right beside to feel the heat then we suggest you check out the Lasko 5790 Oscillating Ceramic Tower Heater. The oscillating fan will blow the heat farther into the room.

If you are looking for a heater that can be used free-standing or as a wall-mounted appliance we suggest the De'Longhi Mica Thermic Panel Heater. This small heater is powerful enough to heat 150 square feet while remaining cool to the touch.

The newer space heaters are almost all very energy efficient. The new technology has made these appliances safer to use, and cheaper to operate. What is your opinion about this energy efficient space heater review post? Share with us. 

Vernon Scott
 

Vernon is the founder of this cool ( read HOT! ) website. He's superbly experienced on heating technologies as well as having clear ideas about modern heating appliances. Vernon has called him " I am a hot ( this time read COOL! ) guy!"

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