In case you don’t have time to go through the whole article, and just want to know what the best electric garage heater is, then our recommendation is the Cadet RCP502SCM.

If you love spending time in the garage, then you know how disrupting the winter season can be to your hobbies. Most projects require time and energy to complete, and as your body chills, you are probably going to have a hard time finishing whatever it is you intend to conclude.

Luckily, no matter the size of the garage, there is a variety of electric garage heaters available on the market to offer you enough warmth and heat to get you working back in comfort.

What is an Electric Heater?

An electric garage heater is a machine that adapts electrical current to heat. It does this through a process of current conversion using an electrical resistor. The resistor is tasked with allowing electrical current to pass through and get converted into energy. This energy heats the air surrounding it, which is later blown by a fan into your garage workspace.

Out of all the garage heaters available on the market, electrical heaters are the best to use following how easily they operate. They only require minimum maintenance that involves optional mounting and plugging of a 220v / 240v outlet.

At present, the market also has 120v and 110v electrical garage heaters. However, these heaters are not designed for larger spaces. They will be rendered ineffective in larger areas such as a garage.

A Quick View of Our Rating

Our #1 rated – Cadet RCP502SCM

Our #2 rated – King KBP4806

Our #3 rated – NewAir G73

Our #4 rated – King ECO2S

Why Should I Buy an Electric Heater?

Electric heaters are an incredible, easy to use, convenient piece of equipment that provides users with a significant amount of heat in their indoor areas reasonably and quickly. Since they are the primary source of building heat energy, it is not a must to run it for long durations. You can switch them on only when you are in the garage. This attribute makes them more efficient generally than other comparable choices.

Another thing that makes electrical heaters stand out is their ability to run without making noise. The coils are silent while the prop fan produces little to no sound when moving air over coils to your workspace. Electric heaters are also easy to install if they have the simple mount and plugin feature. They usually are thermostatically controlled to regulate them from wasting energy.

What are the Concerns About Electric Heaters?

Electric heaters are a bit expensive when compared to gas heaters. An electric heater might be a more expensive choice for you in the beginning, but in the long run, it proves to be dependable, efficient, and long-lasting. The larger the heater, the more expensive it becomes as it will be putting out more energy to heat your garage effectively.

One of the downsides of these heaters is that they sometimes overheat with prolonged usage. You should strive to avoid overheating as it can potentially damage your heater beyond repair, as well as cause fire if they are installed in flammable areas.

However, quality brands will have inbuilt overheat protection structures that will shut the heater down after continuous use, or when internal temperatures pass a certain point.

It is also important to mount your electric heaters as they can tip over when bumped, causing not only damage to the unit, but potentially start a fire. Ensuring the heater is placed in a secure area is a good start towards safety surrounding its usage. If you are short of space, you might want to consider buying a brand that has an inbuilt tip over feature that automatically turns the heater off when this happens.

Electric heaters tend to become warm or even sometimes hot to the touch in some regions of the heater. Although there are cool-touch brands on the market, you should always be aware of this point to avoid accidents and unnecessary burns. Always avoid keeping an electric heater close to flammable materials.

You may also want to occasionally clean the vents to keep them from clogging with dust. This will avoid a burning smell or overheating, especially in areas such as the garage.


Portable Heaters Versus Fixed Heaters

Portable and fixed heaters are the two basic designs for electric heaters. Portable models are more mobile and can be transported from one place to another, depending on your needs. Portable models often do not have much power in them and might not heat large spaces. However, they are sufficient for home garages, designed to be mounted on walls and ceilings to direct heated air where necessary. A few portable models can heat much larger spaces and are the more popular choice for garages.

On the other hand, fixed heaters require installation, and they are not movable once installed. Ceiling, freestanding, and wall models are all useful for a variety of reasons, but they are designed specifically for larger spaces. You will need a person who is experienced in mounting and electrical works to get this model up and running as it is much more complicated than most portable designs. Fixed heaters tend to be more popular among individuals in industrial areas and larger garages.

Choosing the Best Electrical Heater for Your Garage

Finding the best electric heater for your use should not have to be a stressful endeavor. Before settling on a particular type of heater, you first need to ask yourself a few questions.

How Much Space Do You Want to Heat?

You need to know the size of the area you want to heat before selecting a heater. If you approximately have the square footage of space, you can narrow down the options you have to ensure you purchase a heater that will provide heat in the designated area.

Is Your Garage or Workspace Insulated?

If your garage is not insulated, it will lose heat quicker than an insulated one. If you are not ready to insulate your garage, then you will want to consider a more powerful heater, keeping in mind energy-efficient choices.

Where Will You Mount You Heater?

No matter whether you want to use a portable or fixed heater in a place near where you work or you want it mounted for better coverage, it is essential to have an idea where you want it fixed. Always ensure you can get your power cord to reach your available power supply.

What is the Best Electric Garage Heater?

If you have started looking for an electric garage heater, you probably know how cumbersome it is to find the right machine for your needs. The sheer amount of choices available is just overwhelming. This is why we have done a little bit of research to provide you with a few options to consider surrounding your heating requirements. Read on to find our best selected electric garage heater reviews.

King ECO2S

These heaters are uniquely designed for outdoor heating structures such as sheds, garages, barns, among others. They come with a mounting bracket that assists you in mounting it in a fixed location, but you can also use it as a portable heater, fixing it where you want it and when you want it.

The front is adjustable to direct heat, allowing you the control of the thermostat with an on and off switch. The on and off switch is located on the heater and the remote control, making it easy to use and control if it is situated at a distance.

With an average maximum coverage of about 500 sq. ft., this unit is the perfect heater for a single or smaller two-car garage. Its heating element is finned to get the best amount of heat coverage as best as possible, thanks to the fan-supported forced air setup.

Also, you can adjust the heat specifications to your levels, allowing it to turn off according to the specifications.


  • Quickly warms a single car garage
  • Durable and easy to install
  • Efficient heat output


  • The fan makes noise

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NewAir G73

This model is one of the most outstanding electric heaters on the market today, thanks to its exceptional performance and consistent excellent reviews.

It comes with stainless steel features, which ensures it lasts for years to come. This powerful 240v electric garage heater offers you up to 5,000 watts of power while providing up to 17,060 British Thermal Units (BTUs). This machine can efficiently heat any area measuring up to 500 sq. ft.

An inbuilt single pole thermostat, allows users to select the perfect working temperature for your garage. While the heater fan operates at 200 Cubic Feet per Minute (CFM), it ensures adequate heat flow throughout your workspace. Designed to last, its stainless steel constructions protects the heater from rust and corrosion thanks to its powder-coated finish.


  • Powerful
  • Capable of producing 17,060 BTU
  • Efficiently heats your workspace


  • Not easy to install

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King KBP4806

This is one of the best-hardwired electric heaters on the market today. This heater is perfect for anyone looking for a wall-mounted or ceiling model that is capable of heating areas measuring up to 600 sq. ft.

According to market pundits, it is one of the most powerful and versatile electric garage heaters around today. This unit provides up to 13,000 BTUs of heating power.

With several watt options available, you can decide the heat specification to provide your workspace with the right heat, however big or small. Manufactured with safety in mind, it has a patented Smart Limit Protection and tip-over shut-off safety mechanism.


  • Powerful and dependable
  • Automatic heat shut off
  • Safety mechanisms


  • Poor customer care

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Cadet RCP502SCM

This model has both 4000 and 5000-watt options, as well as several color combinations. It is a compact, yet powerful portable electric garage heater that can heat a large garage, greenhouse, shed, basement, and other outdoor structures with ease.

You can mount it to a ceiling or a wall, or simply place it within reach of a 240v power outlet.

Manufactured to last, it has a rugged, heavy-duty construction that makes it be a dependable portable heater. It also prides of having a safety thermostat shut off that is adjustable depending on space, size, and outdoor temperatures.


  • Safe and durable
  • Dependable and efficient to run
  • Mounts easily
  • Directs heat


  • Noisy fan
  • Must have a 240v power outlet

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Our Choice

When on the lookout for the best electric garage heater, you may not have been familiar with the many options you have on the market. And while your personal needs should influence the type of brand you decide to purchase, our overall favorite is the Cadet RCP502SCM.

We pick it due to its durability, ease of use, and swift heat times. Its adjustability allows you to use it in various locations, and since it is lightweight and portable, you do not have to worry about mounting and securing electric cords.