What’s the Most Efficient Space Heater? Top 10 Revealed

How We Reviewed

We reviewed many of the products on the market to find the most efficient space heaters. We based our results based on durability, reliability, safety, efficiency, potency, and price. Read on to see the best space heater for your home or office.

What We Reviewed

SolarGlow Solar Garden Lights

Features

One of the most versatile products you will see on our list is the Dyson AM09 Fan Heater. This excellent all-around product is a space heater which is also a tower fan and is packed with functions. Expect the thermostat to keep an eye on the temperature in the room.

What’s great about this is that it will adjust and as far as safety goes, there are no exposed heating elements. This means it is okay to touch the unit when operational, and there are no fan blades to injure someone’s fingers.

Users can take advantage of the Air Multiplier technology responsible for an uninterrupted airflow and therefore some of the best efficiency ratings on the market. Oscillation control, a timer, a magnetized remote control, heating, and even cooling are all essential features of this product.

SWM Homeleader 1500W Electric Oil Filled Radiator Heater

Features

One of the more significant products on our list, this regular looking radiator is a fully digitalized machine packed with plenty of settings and technology. The LED display is user-friendly and at 1500W, the oil inside the heater will warm up fairly quickly and will heat your room evenly.

For maximum efficiency, the unit continues to heat the room even after being turned off because the oil inside takes time to cool off. It features thermal cut-off functions, a tip over switch-off and the Cool Touch surface.

All of these options make the Homeleader Oil-filled Radiator Heater a very safe choice for any home, and the stylish design allows it to fit in without being an eyesore.

Crane USA Fireplace Space Heater

Features

The next product on our list is just a fireplace in a box. It’s unique because the whole front side of the unit is made of glass and peeking inside reveals a realistic fireplace setting.

The catch is that you can use this device in any room you wish and the fireplace look is just for decoration as there is no mist, fumes or anything related to burning wood. The unit is an electric space heater and has a maximum output of about 1500W and will cover a room of 300 square feet.

It has four settings, which are on/off, eco, low and high. The exterior will never get hot so you can move the appliance without worrying about burning yourself.

Lifelux 1500 Watt 110 Volt 15 Amp Revolutionary Infrared Electric Heater

Features

The next product on our list is an infrared heater that is stylish and can heat a massive area of up to 1,400 sq feet. It is designed to look like an old school radio as it comes in a small wood cabinet with an air mesh to prevent you from burning yourself on heating surfaces.

One drawback of this hefty heater is it weighs over thirty pounds and is difficult to move, but it more than makes up for its lack of mobility by having one of the most extensive coverage areas on the market.

Cadet RCP502S 5,000-Watt Portable Garage Heater

Features

We also need space heaters at workshops and garages, and the next product on our list can solve a big problem without having to mount or assemble a huge unit. It measures 8 x 16 x 17.5 inches, and you get the incredible 5000W of power output in a 240V circuit.

This unit also comes with a 6-foot cord so you won’t have any issues powering it wherever you move it, and since the fan is powerful, remember it will be noisier than usual. We advise you keep a minimum of three feet of clearance when using it and it has a fan-only mode besides the two heat settings.

DeLonghi DCH4590ER Safeheat 1500W Digital Ceramic Heater

Features

This space heater is a unit of outstanding quality and a tabletop heater with a decent coverage size. The heating mechanism is ceramic, giving you long term heating, but there is also a fan to blow the heat around.

The max output is 1500W, and you can use the stylish control panel with an LED display to control your heater. The buttons are hard to see unless you get close to the unit and it also has a remote control for all the functions.

Take advantage of the 24-hour timer to shut off the device at a time of your choice. And, the oscillation setting in case you want the fan to cover a broader area in the room.

Sure Heat 30,000 BTU Blue Flame Dual Fuel Gas Space Heater

Features

If you ask Sure Heat, they claim this product is 99.9% efficient, and our tests led us to believe them. With the Sure Heat you have the option to run your unit either with liquid propane or natural gas.

This space heater uses this dual fuel technology to allow for a lot of versatility. It is a vent-free heater so you can use it indoors easily, and the convection heating means your room will get warmed up evenly.

The best part about gas heaters is that they don’t take long to work and this powerful unit has a range of up to 1000 square feet. You can have it wall-mounted or leave it freestanding, and it also has an automatic shut off, but no remote control

Tenergy 900W/1500W PTC Ceramic Heater

Features

Portability is essential for the next product on our list, but that doesn’t mean you should expect low performance. Tenergy claims heat is generated within just the first three seconds and you get two settings of 900W and 1500W.

The lower parameter sets this heater apart as it is higher than average and keeps this mobile unit efficient.The 15-degree fan tilt makes for fantastic directional heating, and you can have the appliance sitting on the floor with a hot wave aimed at anywhere you need.

Overheating is prevented by the built-in thermostat, and it features a quiet fan no matter which speed you use it on.

DeLonghi HMP1500 Mica Panel Heater

Features

DeLonghi is a trusted brand to bring you an excellent heater and an aesthetic solution to your home. This product features a slick design and will be a nice addition to any room as it comes with plenty of functions and features.

The product is easy to carry as it is lightweight and fragile and the slim design makes it perfect for tight spaces. The unit has two settings for the thermostat of 1500 watt and 750 watts, and there is no fan to make any noise. It also has a tip-over “off” switch to prevent overheating.

Lasko Designer Series Ceramic Space Heater

Features

The Lasko 6435 is another model that comes with a positive reputation and is competitively priced and packed with features, making it one of the best value heaters available.

It has three temperature settings (low, high and automatic), and built-in safety features to make sure you feel safe using this unit. The elegant design of the unit also makes it one of the best-looking products on the market, and it uses a ceramic heating element combined with oscillation so it can heat large spaces.

Someone controls it using electronic buttons on the top of the device or remote control with full functionality.

Product FAQ

Below we answered some of the most frequently asked questions about the most efficient space heaters so you can know the information needed to understand our analysis and pick the right heater for you.

What Is a Space Heater?

They are heaters, commonly running on electricity, that have been specially designed to heat certain specific areas, as opposed to entire homes as with central heating systems. Having a space heater is primarily for heating that room, making them perfect for enclosed spaces.

Different Space Heaters

Finding the most efficient space heater isn’t as easy and as straightforward as you may have thought as there are several types of space heaters on the market. Below we analyzed the three most popular options, so you know what you are buying.

Convection heaters

The first and probably most popular option on our list, convection heaters are specially designed to heat the room by generating warm air that rises quickly to help increase the temperature in that room. As the hot air rises, the cool air plummets to the floor, forcing the air to circulate and thus heating a room without causing it to become overly stuffy or dry.

Radiant heaters

Another option is radiant heaters, also known as radiative heaters. These heaters are specially designed to heat specific objects or people in a room instead of the air. They are placed directly in front of a person instead of anywhere in the room and work extremely quickly, so if you are looking to get heat fast, these may be the best option for you.

Combi heaters

Combi heaters are a combination of convection space heaters and radiant space heaters as they help to distribute warm air around the room using a fan while generating direct heat at the same time. They are often the most expensive type of heater, but they provide a balanced form of heat distribution which is usually well worth the price.

Why Do You Need the Most Efficient Space Heater?

The reason you need the most efficient space heater is so you can save energy and money, easily control the temperature of your room, get rid of cold spots, and heat your room quietly and conveniently.

What Should I Look for in a Space Heater?

First, consider how reliable the product is as safety should be at the top of your list of priorities. Specifically, with Radiant Heaters, make sure they are put somewhere nobody will touch them by accident as they can cause burns upon contact.

Further, a bad space heater can be a fire hazard or lead to a stuffy and uncomfortable room. Finally, consider what you are trying to heat and pick your product accordingly. If you want a warm room, a convection heater may be your best bet. 

If you will warm yourself, a radiant heater is ideal. And for the best of both worlds, go for a combi.

How Can I Maximize My Heater’s Efficiency?

Radiant space heaters are considered the most efficient heater for your home, but there are things you can do with many space heaters to help you save even more electricity with them.

We recommend turning the heat to low once you have reached a comfortable temperature, keeping doors and windows closed to prevent hot air from escaping, only warming rooms in use and trying to wear warmer clothing.

The Verdict

The most efficient space heater on our list is the Sure Heat 30,000 BTU Blue Flame Dual Fuel Gas Space Heater, but for those looking for a cheaper or non-gas option we would recommend the Lifelux 1500 Watt 110 Volt 15 Amp Revolutionary Infrared Electric Heater.

If you saw another heater on our list better suited for your needs, or like one of our two choices, follow the links provided to purchase your heater today.