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Top 15 Best Electric Garage Heaters 120v Of 2023

Bob Vila
  Dec 7, 2023 11:41 PM

Using the internet, we discovered how many possibilities are there. Even we got lost: the competition is tough. So, we laid out criteria to choose the best electric garage heaters 120v. The criteria were fairly simple: get the most bang for a buck, have great performance and user reviews.


Electric heaters come in a wide variety of shapes and sizes, making it difficult for homeowners to choose the ideal one for their garage. However, there are a number of considerations to consider when selecting the best 120v electric heater for your garage space. These aspects were taken into consideration when identifying the top choices now available on the market.

This guide will show you how to pick the best electric heater for your garage by going over all the factors to consider. Additionally, we've listed our top selections based on your needs!

So, what are the most crucial considerations to keep in mind while purchasing an electric garage heater?

Knowing what you're searching for when purchasing an electric heater for your garage is essential.

Having a grasp of the 120v electric heaters ideal for garages and the things to bear in mind when browsing possibilities will help you make an informed decision. Today, there are many different kinds to choose from.

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Last update on 2023-12-07 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Buying Guide


Any 120v garage heater will have the same heat output at 1500W, regardless of brand. A square foot of space can be heated with every 10 watts. A 150-square-foot garage may be heated by any 120-volt garage heater.

With an insulated garage of roughly 200 square feet, a 120v garage heater may suffice. If you're looking for something more powerful, you'll need to check into 240v electric garage heaters with 10,000 watts or more of heating output.

Heating big areas using space heaters or infrared heaters is not possible with these devices. In the winter, they can provide some radiant heat, but don't expect 1500W of power to heat a 1000-foot workshop.


Keep in mind that you'll need a one-year guarantee on a 120v electric garage heater. A guarantee from a well-known brand ensures that you can easily receive a replacement if your model has a flaw.

Safety features

To prevent it from being accidentally turned over, you'll want a space heater with built-in tip-over protection. You need this if you have children or pets.

To prevent them from becoming too hot to handle, some garage heaters are housed in a protective cage. As a result, it will be easier to relocate the heater should you wish to do so.


When looking for a 120v garage speaker, the wattage is a crucial factor to keep in mind because it impacts the speaker's power. It's no coincidence that some brands offer a longer range at lower wattages because wattage is directly related to the amount of space a heater can warm to its maximum temperature. Because of infrared technology, they can maintain a space warmer than the surrounding air even if they don't produce the maximum amount of heat.

It's hard to go wrong with the Dr Infrared Warmer Portable Space Heater as your go-to 120v garage heater. Powered by 1,500W, it can heat most rooms pleasantly. To keep you warm as you work on your vehicle or workstation, it's a great option for heating sections of your garage.


There are only a few temperature settings for 120v garage heaters. This allows the heater to raise the temperature of the space to a predetermined level within the heating ranges. Thermostats can be found on some products, while dials can also be found on others. Between 50 and 80 degrees Fahrenheit is the most frequent temperature setting for a 120v garage heater.

As a result, certain heaters outperform the rest. We recommend the Amazon Basics Portable Eco-Smart Space Heater if you want to get the most heat out of your heater in your garage. As high as 85 degrees Fahrenheit may be reached inside, and it serves as a cheap farm garage for your vehicle and other items.

Heating Range 

A 120v garage heater's heating range is another thing to keep in mind while purchasing one. An electric garage heater's heating capacity can be determined by its power output and maximum temperature. Garage heaters with higher output can heat a larger area because of this. Based on the size of your garage, you'll need a heater with the appropriate wattage and temperature range.


As a result, you may be limited in terms of features if you're seeking for the most affordable heater on the market. However, a heater might come with a slew of functions that you'll appreciate.

When it comes to distributing heat, oscillating heaters are an excellent option. A heater with a programmable thermostat may be more suitable for your needs. There are several heating settings available on most heaters, including Eco options. When looking at heaters, it's critical to think about what features are available and weigh their importance against your own.


The efficiency of electric heaters must be taken into account while purchasing one. When purchasing heaters, you can use user feedback to check that the device delivers on its stated heat output. As we discussed earlier, a heater's efficiency is maximized when its size is proportional to the size of the room.

However, choosing one that is engineered to perform well is always a wise move.


Is a 240v electric heater better than a 120v electric heater?

Electric garage heaters that operate on 120-volts should only be purchased if you do not have access to a 240-volt outlet.

Not all garages have 240v outlets, and installing a 240v outlet by a professional can cost you $300.

If you can afford it, I recommend 240v over 120v because it has the capability to heat a 400-square-foot garage to its maximum capacity, whereas 120v is limited to 1500W.

Will my electric bill go up a lot with a 120v electric garage heater?

Assuming you're considering electric heaters for your garage, it's likely that you won't be spending the most of your time in it.

For a small purchase that will keep you toasty in the winter, it's an excellent choice.

Just be aware and don't forget to switch it off or you'll wind up paying more for electricity. It may cost as little as 30 cents an hour, depending on where you reside.

Will a 1,500 Watt Heater Heat a Garage?

A garage can be heated using 1,500 watts of power. The problem is that you won't be able to heat your entire garage with it. As a result, we suggest that you use garage heaters to warm up only a portion of your garage. Trying to heat the entire garage with a garage heater can result in higher electric bills and a shorter lifespan for the heater.

What’s the Best 12V Garage Heater?

The Amazon Basics Portable Eco-Smart Space Heater is the best 120 volt garage heater. To top it all off, it's among the most cheap on the market (for garage heaters). It's not perfect, but it's the most cost-effective option, therefore we recommend it to the majority of customers.


No one says your garage must be a frozen wasteland throughout the winter months. Your power cost won't rise more than a few dollars a day thanks to the 120v garage heater you may use all year round. That being said, if you don't have the right garage heater, you may find yourself shivering in your garage because it lacks sufficient heating range. As a result, we always advise that you shop around and test out a variety of garage heaters before making a final decision.

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