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10 Best Energy Efficient Electric Heaters for Large Rooms

People may love summers, but winters have their charm. Staying in with a cozy blanket and hot cocoa to binge-watch your favorite shows is the perfect me-time everyone deserves in winter. To make your space cozy, you should invest in energy-efficient electric heaters for large rooms.

Not every apartment building or home has central heating, so you must get space heaters to keep warm. But if you have large rooms, you should invest in energy-efficient heaters that cover large spaces.

Even if you’re in a small apartment, getting a heater for large rooms would be a better choice, as you won’t have to get a heater for every room.

Summary of Top Picks

Type Product
Best Overall Heat Storm HS1500 Wifi
Best Budget Option Aireplus Radiator
Best Energy Efficiency Pelonis PHTPU1501
Best Wifi Controlled Heater Heat Storm HS-1500-PHX Wifi Infrared Heater

Best Energy Efficient Electric Heaters for Large Rooms

Modern heaters generally consume less energy, but you should ensure that the model you choose is, in fact, energy efficient. That’s good for your pocket and the planet, as the clock on climate change beyond repairs is ticking.

Energy Efficient Electric Heaters for Large Rooms

To cut through the noise and save you time, here are the best energy-efficient electric heaters that can easily warm big rooms:

Heat Storm HS-1500-PHX Wifi Infrared Heater

Heat Storm HS-1500-PHX-WIFI Infrared Heater

The Heat Storm HS-1500-PHX Infrared Heater is a Wii-enabled heater that you can conveniently control from an app on your phone. It’s an infrared heater powered by electricity through a cord that can easily be hidden.

In addition to being one of the best energy-efficient electric heaters for large rooms, it is also a wall-mountable heater and saves floor space. Mounting it on the wall is easy as the heater accompanies all the hardware required for installation.

Not only are the grills cool to the touch, but also the entire body of the heater. It doesn’t make the wall hot, either. So, if you have kids in the house, you can install it worry-free. There’s also a child lock, so they don’t mess with the control panel on the heater.

In terms of power, it requires 1500 watts for the highest setting. As all Heat Storm heaters are ETL-certified, this one also has this safety certification.

This one also has a power outage setting recall feature built-in. This means that if you face a sudden power outage, it will start with the same settings when the power returns.

The digital thermostat ensures temperature accuracy. Plus, the heating element doesn’t make much sound, which makes it a quiet heater you can use while sleeping.


  • Wifi connectivity
  • Reliable safety features
  • Comfortable and cozy heating
  • Energy-efficient mode


  • Installation needed

Pelonis Ceramic Tower 1500 W Space Heater

The Pelonis Ceramic Tower Space Heater is one of the large rooms’ most energy-efficient electric heaters. As a 1500 W electric heater, it can quickly warm a large bedroom or living room. There are three heating modes: low, high, and ECO, with the last being the most energy-saving.

PELONIS PHTPU1501 Ceramic Tower 1500W Indoor Space Heater

The ceramic heating technology is efficient, achieving an ambient temperature of 73 degrees in seconds. Made with flame-resistant material, the heater’s exterior stays cool to the touch, making it a safer option for a household with kids or pets.

With a sleek tower design, this Pelonis heater is also space-efficient. It won’t require a lot of floor space, and you can easily place it anywhere. Thanks to the handle on top, you can easily move it from one room to another.

The coverage area is 100 to 160 sq. ft., typically the size of bedrooms. With 70 degrees oscillation, the heat spreads evenly and quickly.

It also has a tip-over safety switch, ensuring that a toddler or pet doesn’t knock over the heater. As for the sound, it’s barely noticeable at 50 dB, making it one of the quietest heaters on the list. With a timer of up to eight hours, you can sleep peacefully with this the whole night.


  • Energy-saving ECO mode
  • Remote control
  • Handy safety features
  • One-year manufacturer warranty
  • Powerful and quick heating from a ceramic element


  • Will not heat the entire house

See Related: Best Energy Efficient Kettles | Eco-Friendly Options

De’Longhi Convection Panel Heater

De'Longhi Convection Panel Heater

If you’re looking for an energy-efficient space heater that gets the job done, De’Longhi Convection Panel Heater is a viable option. This modern-looking heater has a forced airflow heating mechanism that ensures warm air spreads through the entire room, even the big ones. The powerful 1500W heater doesn’t take up much space because of its sleek body.

You can place it on the floor or mount it on a wall as you, please. This model offers convenience with features like an LED display, ECO saving mode, and an adjustable thermostat.

It has an instant warmth function that uses two fans to spread warm air and heat the room quickly. This feature can be useful when you return from work in the evening, and the house is too cold. This dual-fan system also ensures that heating is more even (convection).

When in the ECO mode, it automatically adjusts temperature and heating according to the ambient temperature. This results in less electricity usage, so you can even have it on for hours. But if you’re one of those who like it quite warm, you can adjust the settings with just a few presses.

This also has a safety thermal cut-off function, which cuts off power when it heats up. Then there’s a tip-over switch to save it from accidental falls or knocks.


  • Contemporary design
  • Convection heating (uniform heating)
  • Easy-to-use LED panel
  • ECO mode for energy efficiency
  • Wall mountable


  • A bit pricey
  • Cord not long

See Related: How to Heat a Garage Safely & Sustainably

Lasko Ceramic Tower Space Heater

The Lasko Ceramic Tower Space Heater can easily warm a room up to 300 sq. ft in area. Powered by electricity, this tower-style heater’s convection heating element (ceramic) ensures warmth reaches every room corner.

Lasko 751320 Ceramic Tower Space Heater

Controls are located on the top of the appliance, but you also have a small remote control for added convenience. Like other large space heaters, this one also has a maximum wattage of 1500 Watts.

Lasko is an American company, so it’s trustworthy. However, this heater is made in China as are most other heaters today. With all the essential safety features, they have ensured the device isn’t a hazard around children, pets, or adults, as accidents can happen.

This one comes fully assembled and features a handle that you can use to carry. The auto-shut-off time is seven hours. You can choose from low or high heat or put it in auto mode using the thermostat to get the temperature right.


  • Stylish and sleek design
  • Remote control
  • Budget-friendly
  • ETL-listed


  • Grills are not cool to touch

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ASTERION Ceramic Space Heater

Ceramic Space Heater Portable Oscillating Electric Heater

The ASTERION Ceramic Space Heater is a versatile heater with five distinct modes, including an ECO mode. A good option for climate-conscious, the other modes include high, low, freeze, and fan modes. So you can use it in both early winters as well as those frigid cold days.

During ECO mode, it can adjust the temperature between 60 to 90 degrees. The thermostat is very efficient at detecting ambient temperature and adjusting the temperature and heating element accordingly.

The heating timer can be set anywhere from just 30 minutes to up to 24 hours. Similarly, the 72 degrees oscillation means you don’t have to adjust the heating direction manually. It can heat a large room more uniformly and efficiently by oscillating.

This heater also has adequate safety features with overheating prevention and tip-over protection. While it has a DC motor, that does allow it to be a little quieter. The cord is pretty long too, coming in at 1.8 meters.

You can set it up and control it through the control panel on the heater or the remote control that comes with it.


  • Multiple heating modes
  • Easy to use remote
  • 24-hour timer
  • Safety feature for overheating
  • Low noise motor


  • Can take time to heat up big rooms

See Related: Best Eco-Friendly Fireplaces: Top Sustainable Alternatives

Dr. Infrared Portable Space Heater

Dr Infrared Heater Portable Space Heater

Don’t let the name Dr. Infrared Portable Heater confuse this as a small, portable heater just for small spaces like an office cubicle. While it’s designed to be portable, the heating element and range are just enough to warm a large room. After all, it has a dual heating system, combining an infrared quartz tube and PTC heating element.

In terms of wattage, it takes 1500 W to run. The blower is high pressure yet low noise, emitting a sound of just 39 dB. This is portable, thanks to the caster wheels at the base and its weight of just 24 lbs. Another great thing is that the cord is 72 inches long, so you can connect it even if an outlet is far.

All the necessary safety features are there, including overheat protection, tip-over protection, and automatic shut-off after 12 hours. It comes with a lifetime filter, so there’s practically no maintenance.


  • Highly portable design
  • Can easily warm a large room with dual heating elements
  • Low noise
  • IR remote control
  • Quality construction


  • The temperature range is limited
  • Expensive

KopBeau Oil Filled Radiator Electric Heater

The KopBeau Oil Filled Radiator Electric Heater has a smart ECO mode that keeps the temperature in the range of 40 to 95 degrees and uses very little energy. While it’s an oil-based heater, it has an oil-refill-free construction, meaning no need to change the oil.

Electric Heater with Digital Thermostat

This one has a tower-style body with a radiator-style design that looks elegant and does the job well. As one of the best electric space heaters that are energy efficient, it ensures that the temperature in the room is even, especially for large rooms where cheap heaters often fail to warm evenly.

While it doesn’t heat up the room very quickly, it does keep it constant once it achieves the desired temperature. But if it’s too cold and you want more heating, run it on high mode (1500 W).

It comes with remote control, which you can use to change settings and turn it on/off from the comfort of your couch or bed.


  • Uniform heating for large room
  • No need to refill the oil
  • Beautiful design
  • Remote control
  • Energy-saving ECO mode


  • No quick heating

Pelonis Oil Filled Radiator Electric Heater

The Pelonis Oil-Filled Radiator Electric Heater is yet another one of the best energy-efficient electric heaters for large rooms and offices (up to 160 sq. ft.). There are three heat modes, combining five different temperatures. Then there’s also a quick heating feature that gets the temperature to 70 degrees in just three seconds.

Radiator Heater with Safety Protection

The design is minimalistic, modern, and attractive, adding to the look of any space you use it for. It has a sleek base with a towing heating unit and an LCD on the top that shows the mode and temperature. The buttons are also on top, which makes it easier to change settings without bending too much.

As usual, Pelonis also offers a one-year warranty for this heater, as it does for all its heaters. It’s also incredibly lightweight with a weight of just over 14 pounds. You can move it from one room to another without burning your hands as the material is safe to touch and cool.


  • Wide temperature range (cool and warm)
  • Sleek, modern design
  • Good value for money
  • Lightweight with a carry handle
  • One-year warranty


  • Customer support isn’t great

Cadet Manufacturing Electric Wall Heater

A wall heater is the best solution for those who want something very non-intrusive. The Cadet Manufacturing Electric Wall Heater is a fan-forced electric heater that delivers reliable warmth for a large room.

Fan Forced Electric Wall Heater

It has an adjustable thermostat that allows you to set the temperature to your liking. However, you can also get it without one.

The heating element inside uses coils, which deliver heat faster. This is ideal for places with a cold climate most of the year, as it’s more of a permanent heating solution. This is not a portable heater, so you can’t move it from one room to another.

Although it requires installation, the 20-gauge wall mounting can come with the heater. You may be able to install it by yourself, but you’ll need to cut a square in the wall, which may require professional help.


  • Powerful fan-forced heating
  • Suitable for large rooms/hallways
  • Optional thermostat
  • UL listed


  • No advanced features
  • Installation required

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Lasko Designer Series Ceramic Space Heater

Lasko Designer Series Ceramic Space Heater

Next on our list of the best energy-efficient electric heaters for large rooms is the Lasko Designer Series Ceramic Space Heater. The modern design makes it look more like a home decor piece than a heater. It’s mounted on top of beautiful metal frame legs.

This is a ceramic heater with oscillation for more even heating. Also, it runs very quietly, which is something a lot of people look for in a heater. The temperature range is 65 to 80 degrees, which is not that wide but makes the room cozy enough.

The timer works hourly and can be set for up to seven hours. The buttons are on top of the machine for easy access and less visibility from the front.

You can also place it on the floor or a table, as the stand doesn’t heat up. The heater itself is also cool touch, so you can move it freely. It also has overheating protection.

In addition to the control panel’s buttons on top, you can also control the temperature and choose from the three heat settings. This heater weighs only three pounds, making it the lightest electric heater for a large room.


  • Decorative design
  • Lightweight but solid construction
  • Cool to touch at all times
  • Remote control
  • Built-in timer


  • Small temperature range
  • No quick heating


What type of electric heater is the most energy efficient?

An infrared electric heater is the most energy-efficient type of electric heater. It uses electromagnetic radiation to heat objects directly, rather than heating the air around them, which makes it more efficient than traditional convection heaters. Additionally, many infrared heaters have energy-saving features like programmable thermostats and automatic shut-off timers.

Is there such a thing as an energy efficient electric heater?

An energy efficient electric heater is a type of heater that uses electricity to generate heat while consuming less energy than traditional electric heaters. These heaters are designed to minimize energy waste and reduce electricity costs. They often include features such as programmable thermostats, timers, and energy-saving modes to further optimize energy usage.

What type of electric heater is the cheapest to run?

An electric convection heater is the cheapest type of electric heater to run. These heaters work by heating the air in a room, which then circulates and warms the space. They are typically more energy-efficient than other types of electric heaters, such as radiant heaters, which heat objects in a room rather than the air.

Additionally, electric convection heaters can be controlled with a thermostat, allowing for more precise temperature management and further energy savings.

What type of electric heater is the most energy efficient?

The most energy-efficient type of electric heater is a convection heater. Convection heaters work by circulating air over a heating element, which warms the air and creates a convection current that spreads heat throughout the room. This method of heating is more efficient than radiant heaters, which heat objects directly, or fan-forced heaters, which blow hot air in a single direction.

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