Most Energy Efficient Space Heater for home? [2021 Buying Guide, Comparison & Economical Electric heaters Reviews

The cold is truly biting and you need to keep warm. The question that comes into mind is – Are  space  heaters  energy  efficient? At what cost? How much more will this desired warmth add on to the energy bill?  And that is why you need a most energy efficient space heater to warm your rooms cost effectively.

Choose your best economical electric heater from those listed below and regulate your room temperature efficiently. Well, you may even end up safely easing off the pressure on your central heating system and thereby reducing your heating bills.

Comparison Table: The Most Energy Efficient Room Heater

Most Energy Efficient Space Heaters    
nameimageEfficiency featuresBudgetDetails
Lasko 7542003 heat settings low, high, fan, adjustable thermostat$More info
Honeywell HCE200W2 heat settings, adjustable thermostat$More info
Lasko 6435Two power settings 1500/900W, oscillating system,timer$$More info
DeLonghi HMP1500 Mica-thermic technology, auto shutoff, low(750W)high (1500) setting,thermostat$$More info
Honeywell HCE840B6 heat settings , HeatPhase timer$$More info
DeLonghi EW7707CBComforTemp setting$$more info
Dr. Infrared DR968Infrared ,3 settings low/high/auto, electronic thermostat, 1000W/1500W$$$More info
Mr. Heater MH9BXpropane powered$$$More info
DeLonghi TRD40615EPatented Thermal Chimneys,programmable timer, anti-freeze$$$More info
Duraflame DFS-550-21-BLKThermostat, two heat setting 1000W/1500W$$$More info

So, what critical features should you be on the look-out for in the space heater that is energy efficient?

The  question  is—What  makes  space  heaters  energy  efficient? Before we get into the detailed review of the high efficiency space heater, let’s review some of critical features that contribute to your electricity heater efficiency. Some of the features include;

Automatic Shut-off

The longer your home heating unit runs, the more the cost. The automatic shut off will turn off the space heater after some time.  When the heater is shut off, you will need to manually set it off. This feature also contributes to the safety of your energy efficient electrical heater

Heat distribution

Your most energy efficient space  heating unit should have the capacity to warm the whole room not just in-front of the space heater.

Directional Air Flow

One of features that the space  heater energy efficient could have is a system that blows the warm air not just in-front but also further into the room.

Wide Airflow Distribution

Does the  energy  efficiency  space  heater chosen have a system that is designed to push the airflow to a wider area?

Oscillation System

With this system, once the air is heated, it is thrust frontward and moving thin blades distribute it throughout the room. Rather than keeping the heater on the whole day and increasing your heating bills, you can time it to kick off just before you get home.

Room temperature control

Some electric heaters will have On/Off button but this is just basic. For high efficiency heaters, better control is necessary without your direct intervention. You want the energy efficiency space heater to have features that will control the room temperatures just in case you are asleep or you are simply not in the room. Check out for;


You want to get your rooms heated at a particular time?  Choose a high efficient room heater with a timer. You can then set the timer to get your heater on just on time to ensure that that room is toasty warm by the time you get to use it. This means that you do not have to keep the space heater running for long but only for as long as you need the warmth

1. Thermostat

Set the thermostat at a certain temperature and it automatically turns the most efficient space heater on off depending on whether the room temperature is above or below desired units. So, does the electric heating solution you choose have this feature that will certainly conserve energy?

2. Daily Programmer

Would you like to set different room temperature ranges for different times during the day?

When you chose an energy saving electric heater that has a daily programmer, you can program your heating unit to heat the room to only desired temperatures depending on how you plan to use it.

3. Smart Heating

What if you can efficiently control your room temperatures from anywhere in the world? Well, you better choose an energy saving space heater that comes with a smart thermostat.

The smart thermostat comes with a mobile phone app with which you can control the room temperatures as long as you are connected via the internet.

Portability Features

You can conserve more energy and save on buying and running cost of another heater if the high energy efficiency space heater you choose is also portable.

You can then conveniently move with your room heater from one room to the next as need be. If portability is desirable for you, check out if your choice of space heater has the following features;

  • Casters which support the home heater and assist you to move it without lifting. All the same, the casters may not assist you much on carpets or stairs.
  • Handles that will assist you safely carry the most efficient heater around without burning your fingers.

And now to the detailed review of the high efficiency space heater

1. Lasko 6435 Designer Oscillating :

-Most energy efficient ceramic space  heater:

Most energy efficient space heater Lasko 6435As the name suggests, you already notice one of the features that qualifies Lasko 6435 into this list of most efficient space heaters.

On the face of it, you will simply love the sleek design and the sturdy metal scroll-work decorative base. This nice piece of design will beautifully match any of your room’s décor.

This energy saving space heater is ideal for spaces up to 150 square feet. Though small, Lasko 6435 pumps out over 1500 watts of heat and since it has a ceramic element that maintains and regulates itself, it efficiently warms your rooms quickly and quietly.

 Energy Efficiency features

Two settings (1500w and 900W) allow you conserve energy if your room is less than 150 square feet

This energy efficiency space heater unit oscillates to ensure heat quickly spreads around the room.

For ease of use, fan outputs and temperature presets are placed atop the room heater.  You can preset the time space heater to go on or off up to seven hours in advance. You also get a full remote control for your convenient adjustment of room temperatures.


This energy saving electric heater comes with an overheat protection  and a solid base that prevents tipping over.


This high efficiency space heater has no setup. Get it out of the box and it is ready for use.


  • Sleek and sturdy design which means it cannot tip over easily
  • Small but powerful
  • Energy efficiency space heater unit


Not ideal for rooms above 150 square feet

The thermostat does not function unless you run the space heater on high

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  1. Lasko 754200— The Budget  Friendly Energy Efficient Ceramic Heater

Most energy efficient space heater Lasko 752400

This silver color 1500-Watt heater at 120-Volt furnishes you with ample heat and it is designed for quiet operation.

Energy Efficiency features

For ease of use, the efficiency controls are placed on top of the this most efficient space heater unit. You can set this energy saving heater to any of the three settings (High / low /a fan-only) depending on your warmth needs.

In addition, this energy saving electric heater comes with an adjustable thermostat to assist maintain your desired room temperature.

Safety features

Lasko 754200 has an automatic overheat protection plus a non-slip base. It is also ETL listed for safety


Did you note the carry handles on the picture for easy mobility? Add that to its small size and you are good to go…


This most efficient heater for home comes with a durable plastic construction that will last long.


  • Budget friendly costing around 20 bucks makes  this  energy  efficient space heating unit  a  winner
  • 3 heat settings + an adjustable thermostat.
  • Cool touch exterior and automatic overheat protection for safety


  • Takes long to heat
  • Lower front gets hot
  • The ‘white noise” may be annoying for some people

Want to confirm  if this  heater price is  within your budget?

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3.Honeywell HCE840B HeatGenius

The Energy efficient space Heater with a thermostat and timer

Most energy efficient space heater Honeywell HCE840B

Efficiency  settings

This energy saving space heater is certainly designed for high efficiency. Think of these features

  • Easy to use digital controls with LED display
  • Programmable thermostat
  • 6 heat setting options that allow you to set your desired body, room or floor temperature:
  • A HeatPhase Timer. This timer is designed to adjusts heat down a level every 30 minutes over a  2 hour period until the heater goes off. However, if you do not want to take too long to shut down the heater, you can start it the Heat Phase timer at your desired time.
  • You can set this energy saving space heater on a quiet Mode. You are then set to enjoy soothing warmth on low setting with the fan speed producing a gentle “white noise” to sooth your ears.

Safety Features

  • Fancy this 4-way, tip-over protection which automatically shuts this energy efficiency space heater off if tipped in any direction.
  • In addition, it has a cool touch handle and housing, an overheat protection, a high quality, heat resistant plastic and  a sturdy stable, base.


This  is  one  of  the  most  efficient  electric  heaters   that  comes  with a;

  • Programmable timer
  • Thermostat
  • HeatPhase timer
  • cool touch handle


  • Some people may find the noise annoying

Want to confirm  if this  high efficiency space heater price is  within your budget?

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4. DeLonghi TRD40615E: Most Energy Efficient  Radiant Heater with programmable timer and adjustable thermostat

Most energy efficient space heater DeLonghi TRD40615E

This radiant heater produces 25% more heat as it is designed with extra-large fins resulting in a 40% more heating surface.

Energy Efficiency features

This high energy efficiency space heater is designed with Patented Thermal Chimneys which is engineered to maximize heat flow

Included is a Programmable 24-hour Timer that will allow you to set certain desired temperatures for different time periods throughout the day or night.  When you combine the timer with the inbuilt ECO function, this energy saving space heater will search for a comfortable temperature and that results in more energy saving.

You can also prevent freezing via the anti-freeze setting which will automatically turn on when the room temperature falls below 41 degrees Fahrenheit.

Moreover, the inbuilt adjustable thermostat will allow you set and maintain the room temperature as desired

You also get to choose heating power at  three Heat Levels -700W, 800W, 1500W.


You will love the silent operation and the digital controls on this energy efficient electric heater.

The anti-freeze feature ensures that your pipes do not freeze.


No Assembly Required. The  unit is fitted with Patented Smart Set Wheels.

Safety Features

This efficient electric heater boasts of a thermal cut-off function which is permanently sealed with pure diathermic oil to assist in lowering the surface temperature.

The heating element is also fully enclosed.

Moreover the high efficiency space heater has extra wide feet for stability.

This energy saving electric  heater will also automatically switch off automatically if it tips over.

If your room drops below 41 degrees Fahrenheit it will switch itself on to prevent the pipes from freezing.


This energy efficiency space heater comes with;

  • Many energy saving  features, programmable timer, thermostat
  • Tip over auto shutoff
  • Anti- freeze
  • Portable
  • Three levels heating power


  • Though generally quiet, some people find the noise a little loud

Want to confirm  if this energy saving room heater price is  within your budget?

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  1. DeLonghi EW7707CB ComforTemp: The Oil-Filled Radiator energy efficient space  heater with  thermostat

Most energy efficient space heater DeLonghi EW7707CBThis 1500 Watts DeLonghi EW7707CB ComforTemp Oil-Filled Radiator heater will efficiently heat your 150 square feet room using little energy. It is a slow to warm up, slow to cool room heater. This efficient heater can also operate on 1200 watts. The  settings on the 1200 Wattage are: Min – 500W Mid – 700W and Max – 1200W. On the1500 Wattage, you can set to Min – 700W, Mid – 800W and Max – 1500W.

Energy Efficiency features

The energy saving heater can save up to 27% on your heating bill through the  ComforTemp setting which maintains room temperature between 68 and 70 degrees F.

Operate this high efficiency space heater has three settings, high low or auto.

You can start enjoying heat for a long time once the oil in the sealed fins heat up. This oil is pure diathermic oil and it does not require refilling.

The energy efficient space heater continues radiating heat   and as such, you continue enjoying comfortable heat even after shut down or on lowering  the heat settings.

It can detect low temperatures and automatically switch on.

You can make use of the thermostat to regulate room temperatures.

Safety features

Automatic shut off if it overheats or tips over.

Thermo slots prevents the surface from getting too hot to touch.


It has an easy control panel that you can easily understand and use.

Silent operation


Take special note of the snap down wheels that assists you to move the heater along. The wheels are wide enough to prevent this  most energy efficient electric heater from tipping over.


  • Radiates heat long after switching off
  • 27% Energy savings on Comfortemp setting
  • Three temperature settings Thermostat  at low/ high/auto
  • No more freezing as the Antifreeze setting turns the heater on if the temperature falls undesirably low.
  • Surface does not get too hot due to the Thermal slots
  • Reasonably priced


Takes time to warm up

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  1. DeLonghi HMP1500 Mica : TheMost Energy Efficient Panel Heater with thermostat and  multi directional heating

Most energy efficient space heater Delonghi Mica Panel

Could you be searching for a sleek, modern design efficient heater?

In comes the DeLonghi HMP1500 Mica Panel Heater to furnish you with the desired warmth and aesthetics.


The energy saving space heater comes with the added option of mounting it on the wall if need be.

This efficient electric space heater has an auto tipping over shut-off

In case of overheating, the thermal cut-off triggered by an internal switch kicks in.

 Portability features

The heating unit is lightweight and it comes with a carrying handle and caster wheels.

Takes very little space

Energy Efficiency features

You can set this energy efficient electric heater to high (1500Watts) or low (750Watts) settings. Alternatively, set the thermostat to your desired room temperature.

The room heater produces consistent multi-directional heating through the mica-thermic technology.


Very thin and thus takes very little space


  • This is a Safe heater which means the elderly, children, or pets are safe around it.
  • Highly efficient
  • Takes little space


Thermostat performance. From this heater’s thermostat, you cannot set the temperatures you want as you choose a value between 1-6. Unfortunately there is not much heat difference between the different values.

Inconvenient as it has no remote

Want to confirm  if this energy efficient Mica Panel  heater price is  within your budget?

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  1. Mr. Heater MH9BX Buddy Most energy efficient Radiant Gas Heater  with an oxygen depletion sensor (ODS)

Most energy efficient space heater Mr. Heater MH9BX


Propane heater

Energy Efficiency features

This high efficiency space heater will warm up rooms up to 225 square feet. You can set it on low (4,000 BTU) or high (9,000 BTU per hour). The heating unit has single control start knob.


Simple. Just connect the swivel regulator to a 1 pound cylinder. However should you need to connect to a 20 lb. cylinder, you will need an optional hose and filter. You can then rotate the knob and then the inbuilt Piezo igniter will light the room heater.

 Safety features

Accidental tip-over safety shut-off

When in use indoors, the oxygen depletion sensor (ODS) will pick up on low oxygen levels and switch off.


Get a hold of the fold down handle and move it to the next destination.


You can use this energy saving heater outdoors


Safety enhanced with the  tip over shut off and Oxygen depletion sensor

Portable heater


May not light if placed on uneven surface

Take care to disconnect the gas tank after use

Want to confirm  if this  energy saving gas heater price is  within your budget?

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  1. Honeywell HCE200W—Most Energy Efficient Electric UberHeat Ceramic personal space Heater with thermostat

 Most energy efficient space heater Honeywell HCE

What if you could get a stylish energy saving heater that looks like a stereo speaker?

Then the Honeywell HCE200w is just the most  energy  efficient  space  heater -electric for you.  This stylish 1500 Watts heater is ideal personal heating to place on desks and table tops in small spaces.

Energy Efficiency features

2 heat settings high and low depending on your needs

Adjustable Thermostat to control temperature

Safety features

The energy efficiency space heater has a tip-over shut off switch and over-heat protection

This space heater has a cool touch housing that is safe for you or the desk/table top you place it on.


Set it on the lowest setting, place it on desk or table top next to you and enjoy the warmth without inconveniencing others in the room

3 year limited warranty


  • Stylish
  • Heat control via settings or thermostat
  • Convenient heat on desk/table top


  • A little noisy though tolerable

Want to confirm  if this  energy efficient electric heater price is  within your budget?

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9. Duraflame DFS-550-21-BLK- Maxwell: Most Energy Efficient Electric Stove with Heater

Most energy efficient space heater Duraflame

What if you are searching for a most efficient heater that has a nice antique appearance? Then the Duraflame Maxwell Electric Stove is the heater for you.

Energy Efficiency features

This energy saving heater produces up to 4,600 BTU of warm air and can heat up to 400 square feet of space.

You get a thermostat to control room temperature. The heating power ranges from 1000 Watts-1500Watts.


Comes fully assembled  and  ready to heat with no need for venting or gas lines.


This most efficient space heater unit is freestanding and thus can be moved from room to room.


Though lightweight, it is constructed of metal with an operational door. Even though it’s lightweight, the construction seems durable.


The flame effect generated from this electric stove is realistic and relaxing

Furthermore, the flame can be operated independently from the heating which means you get to enjoy the ambiance all year round.


The heater’s surface stays cool to the touch when it’s working, so you can use it when children or pets are in the room.

This high efficiency space heater unit is UL safety listed


  • Nice design, finish and the flames look real adding ambiance and charm to your room
  • Safe cool to the touch which makes it safe for kids and pets


  • Short power cord which means you may have a buy a longer  heavy-duty extension cord, but that costs extra so that you can place it where you want

Want to confirm  if this  Energy efficient stove heater price is  within your budget?

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10.  Dr. Infrared DR968 – Most energy efficient Infrared space Heater with thermostat


Though this heater is a small little robot lookalike, it will quickly and efficiently heat your 1000 square feet large room

Energy Efficiency features

This energy saving  space heater combines PTC and Quartz Infrared elements to generate high heat transfer rates and thus saving on the heating bill.

Combine this with a high-velocity fan that quietly distributes the heat to the whole room and you get the  energy efficient space  heating you desire.

At 7 inches long, the blower inside the Dr. Infrared Heater is more than double the length of most electric heater blowers.

Moreover, while it creates lots of pressure and moves lots of air at a slow speed, the high efficiency space heater still operates quietly.

You can choose from three options to set your desired heating- at high, low or auto.

This  most energy efficient space  heater also has an electronic thermostat that allows you to choose temperatures between 50-86 degrees.

You can program the temperature ranges on a timer.

You can set this energy saving heater between 1000 and 1500 watts when it is running but it transfers more heater than your regular average 1500 watt brands.


There are no heating elements exposed and the surface only gets warm while this home heater is in use.

This space heater is UL listed


This room heater has been engineered to keep you comfortably warm for roughly 80,000 hours. That’s great service.


Make use of the caster wheels to move this portable heater


  • Energy saving from the Dual heating system for energy savings… it is said to deliver 60% more heat than similar heaters
  • Efficient temperature control
  • Quiet
  • Quickly heats large spaces -1000 square feet
  • Great pricing for the great quality


  • Thermostat not very precise. It may start or stop the heater at temperatures close to the one set
  • Heard of a heater remote turning on your TV? That is the possible conflict

Want to confirm  if this  energy saving infrared space heater price is  within your budget?

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Tips and Precautions when using your Most Energy Efficient Space Heater

To keep all your house warm, you can turn up the heat on your central heating or get a space heater for every room. However, this is certainly neither efficient nor cost effective.

What about you maintain your central heating thermostat at a certain temperature but then you bring in the most energy efficient space heater to warm up the room you want?

And that’s zonal heating which saves energy efficiently, eases pressure on your central heating system and convenient for various users at home.

Get more from your most energy efficient room heater- How to Make Your Home More Energy Efficient

Your most energy efficient space heater will not work well if your home is not energy efficient. So, here are a couple of things you can do to save energy.

Comb your home for any holes and seal them up. Pay special attention to windows and doors. By the way, is your chimney open and letting out that much needed warmth while letting in cold drafts?

Do you have any doors or windows open as your space heater works so hard to crank up the heat? If yes, you will soon find out that even the most efficient space heater will be rendered powerless if the heat is not confined inside the room.

Has your Central System been inspected this year? Get this done to ensure that the system is running smoothly.

Has the Central System vents been cleaned up or dirt/ dust has accumulated in the vents?   Clean up and the same goes for the space heaters you may have in the home.

Keep your central heating thermostat at the lowest possible temperature  and use an energy efficiency  space heater where you immediately need more heat.

Learn how to use the most efficient room heater effectively. You can move it closer and lower the temperature setting instead of heating the entire room at a high setting.

Dress warmly then you do not have to turn up the heat. What about covering up with a blanket to keep warm when watching TV?

How long has that thermostat been in use? Is it still performing optimally? You may consider replacing it with the newer  smart thermostats that will allow you to precisely program the  energy saving heater depending on need.

Whereas insulating your home is an expensive affair, consider  the long term benefits derived from an insulate home.

What about making use of portable heaters?  You may not need many space heaters but a highly efficient heater that you can move around.

How Much You Likely To Spend On Your High Efficiency Space Heater Every Month

Liquid propane

1 pound cylinder at the lowest setting =4 hours of use. You can now multiply this by the cost of each cylinder.


Electricity Rate (1) x Operating Time (2) x Kilowatts Per Hour (3) = Your Daily Operating Cost

The Electricity Rate = charges per kilowatt hour of electricity

Operating Time= how many hours your energy saving  heater will be in use per day Kilowatts Per Hour =Heater Wattage divide by 1000

Once you get the daily cost, multiply by 30 to calculate the possible monthly bill

Important Safety Tips When Using Your Energy Saving Space Heater

Make sure that you read the safety instructions that come with your energy saving heater. However, below are some of the basic instructions;

  • Do not place it in areas that have high traffic. Even though the home heater may have a tip-over safety switch, the person tipping over it may get hurt.
  • Some of the electric heaters come with short cables. It is critical that you get professional advice when adding extension cables or avoid them altogether
  • The heaters consume a lot of power. Don not plug in other electrical devices while the heating unit is in use.
  • Test your Smoke Alarms weekly– You do not know when they may come in handy.
  • Desist from leaving your room heater Unattended. If you must step out of the home for longer than a few minutes, switch if off.
  • Be proactive -Inspect your most efficient space heater before each use.
  • Make sure that the home heating unit is placed on a flat surface- Any uneven surface may cause it to tip over.

Final Thoughts

There you are. You now have information that should assist you in making a choice of your most energy efficient space heater. Moreover, you also have got factors such as space size, efficiency and safety features to consider before zeroing in on a particular model.

Now, get your most efficient space heater, making sure your home is energy efficient and chase out the cold while welcoming the much desired warmth.

Do you need a garage heater? Click here

Are you looking for a wall mounted heater? Click here

What about the safest space heater for your nursery and  baby room?

Do you just want to heat the  space around you? Get a plug in space heater here

Is the  heat making the  air too dry? Get an easy to clean humidifier here

And in case your baby has a cold cough or congestion, find the best humidifier to alleviate symptoms here

Vicky Geem

Hi there, I'm Vicky!- an ardent reader, researcher and writer. And I love breathing in cool, clean, healthy air. No wonder the interest in information and products that cool, heat, moisturize or purify the air in our living spaces. At, I share this information with you in a way that helps you make better and wiser decisions. When I’m not reading, researching or writing, you are most likely to find me enjoying the cleaner air outdoors. Or minding what I eat as I tend to my kitchen garden, picking some and ... meet you in the kitchen! Or contact me on email  or facebook/vickygeem

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