5 Best Garage Heater 

 April 27, 2022

By  Ryan

If you are looking for a practical and efficient way of keeping your garage warm during winter, investing in the best garage heater is the right thing to do. These units are engineered to produce heat in a relatively short timeframe, in order to make your garage comfortable.

Nevertheless, the thing is that the market abounds with an overflowing number of similar products, which could make it difficult for the inexperienced buyer.

That being said, we’ve made the forthcoming garage heater reviews to guide you in your shopping process. Aside from that, we consider that you’ll find our tips and hacks helpful. Let’s proceed! 

Top 5 Best Garage Heater On The Market

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What is the Best Garage Heater? Keep reading to find out!

1. Dr. Heater Heavy-Duty Garage Heater - Best Electric Garage Heater

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This unit can be described as the best electric heater for garage due to numerous reasons. Engineered to heat commercial units, including workshops or storehouses, this electric heater does the job. It covers an area of 600-1000 square feet – this makes it suitable for larger garages.


  • User-friendly operation
  • Efficient
  • Portable
  • Sturdy construction
  • Silent operation


  • It doesn’t generate enough heat if the garage isn’t properly insulated
  • Considerable electricity costs

A surprising feature is its portability. When you pick a portable heater, you can concentrate the heat wherever you need it the most. Considering its power, you don’t expect it to be portable and easy to move around – yet, it is. Weighing roughly 48 pounds, the unit is installed on a cart body in order to provide utter maneuverability.

If you’re thinking of getting this unit, you should know that you can use it as an auxiliary heat source, as well. Hence, we could say that this is a versatile, multipurpose unit. Moving on, this device is capable of supplying no less than 34,100 BTUs of heat energy per hour. This would suffice to heat roughly 1000 square feet.

Furthermore, we like that this unit operates quietly. That is to say, you won’t be bothered by an incessant noise whenever it is turned on. It features a smart, durable construction, as the motor is sealed off, in order to hinder dust and debris from doing any damage.


As for the exterior shell, it is designed for ultimate portability, whose dimensions are 21 x 24 x 33 inches. Most powerful heaters are wall or ceiling mounted, not to mention that they are heavier and much more difficult to operate.

As a potential downside, though, this heater will occupy some space in your garage. So, if space is a concern for you, perhaps a wall or ceiling mounted unit might be a better pick.

Nonetheless, we find that this is a user-friendly unit – which accounts for a major advantage. The built-in thermostat is a nice addition, allowing you to regulate the temperature via the remote. You should note that the temperature range is 50 to 90 Fahrenheit degrees.

Also, considering that this is a 10,000-watt, 240v electric heater, it necessitates hardwiring in order to operate accordingly. On a different note, the device is both CUL certified and UL certified. A one-year warranty is offered with every purchase.

2. Fahrenheat Garage Heater - Best Portable Heater

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The runner-up that qualifies as the best heater for a garage is the Fahrenheat garage heater. This is the best garage heater for a smaller space. That being said, if your garage has less than 500-600 square feet, this unit will do the job.


  • Excellent quality-price ratio
  • Simple and sturdy construction
  • Quiet operation
  • Multiple mounting options


  • Some users recommend installing an external thermometer if the heater is mounted high (it can be inconvenient to adjust the temperature)
  • The thermostat isn’t very accurate, as noted by former customers

For one thing, it is sturdy and powerful – having 5,000 watts. If you typically experience mild winters, this unit will address your needs. Plus, you may use it as a backup heat source.

Featuring mounting brackets, mounting it on the wall or ceiling is effortless. Also, it supports both vertical and horizontal mounting. Truthfully, this is one of the best things about this device – you can install it wherever you want – the wall, on the ceiling, or on the floor, you name it.

Thanks to the adjustable metal louvers, you may regulate the heat output direction, which is quite convenient if you ask us. In order to provide easy temperature control, the unit has a built-in single pole thermostat whose temperature range is 45 to 135 Fahrenheit degrees.


While it’s true that the device doesn’t come with a lot of fancy features, the basics are covered. For instance, the fan isn’t activated until the heating element comes to a minimum temperature point. This way, you can be sure that the heater won’t direct any cold air towards you.

Plus, as soon as the preset temperature is reached, the heater automatically turns off; thus, preventing the unit from overheating. There is also an additional shut off mechanism that deters the unit from overheating. After the garage heater cools off, it restarts automatically.

If your storage space is rather limited, you shouldn’t worry. This unit weighs 29 pounds only, measuring 14.5 x 11.25 x 12.5 inches. If you are acquainted with heavy-duty electronic components, you may attempt to install the unit yourself. On the other side, our advice would be contacting a professional.

Considering that it requires a 240-volt heavy duty power supply, you should take this into account. That’s because most homes use 20-amp breakers, which would mean that the unit is more powerful than that.

3. Dyna-Glo Liquid Propane Forced Air Heater - Best Propane Garage Heater

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This is undoubtedly the best propane garage heater on the market, in our opinion. Firstly, it is certified for safety, being designated for both indoor and outdoor use. It has the capability of heating up a large space in a short timeframe.


  • Quick operation
  • Great for numerous uses
  • It is versatile
  • Safe to use both indoors and outdoors
  • Durable, long-lasting construction


  • Loud operation
  • If the necessary safety precautions are overlooked, unwanted accidents might happen

Since it is solidly built, it can handle extreme temperatures. This is, presumably, one of the major advantages we associate with propane garage heaters.

Furthermore, you can adjust the unit so that it addresses your specific heating needs. According to the manufacturer, it can easily heat up to 1,350 square feet of space – not too bad, right? You may also customize the heat depending on your preferences.

The attached handle is an example of smart engineering. You can use it to carry the garage heater. Since it weighs only 17 pounds, doing that is a breeze. Moreover, the blower is powered by electricity, whereas the heat is produced by propane. Additionally, the unit is engineered so that it delivers up to 60,000 BTUs of heat.


A good part about this heater is that it doesn’t release any propane smell. It can run for roughly seven hours straight on a 20-lbs. tank. Nevertheless, note that the running time will also depend on the intensity of the heat, as well as the capacity of the propane tank.

After making several tests, we can assure you that it is energy efficient. That’s primarily because it balances the energy supplied by fuel and electricity.

Moving on to the construction of the device, we would say it is sturdy. And it would be safe to say that, at least some of its parts are unbreakable. The motor is actually mounted on metal to secure it properly. Meanwhile, the brass burner won’t tarnish or melt in the case of extreme temperatures.

In approximately 40 minutes, this unit can get the temperature in your garage from 18 degrees Fahrenheit to 45 degrees Fahrenheit. This is something that only the best propane heater for a garage can do. Plus, it is compatible with any type of propane – 20, 40 or 100-pound tanks.

On the other side, a disadvantage might be the loud blowing sound it releases. At the same time, the flame is likely to reach beyond the tube. Therefore, it is utterly critical not to place the unit in the proximity of flammable objects or near passers-by; otherwise, you’re likely to experience unwanted accidents.

4. Mr. Heater Indoor-Safe Portable Radiant Heater - Best Propane Heater For Garage

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This item is a great alternative to the best gas garage heater. With the purchase of the unit, you also get a disposable propane tank. The instructions manual clearly states that a 1 lb. is meant to last for roughly three hours – on a high heat setting, and for six hours on a low heat setting.


  • Wall mountable
  • Portable
  • Lightweight
  • No power needed
  • It utilizes throwaway gas canisters
  • Installing a CO and gas detector is a must


  • Loud operation
  • If the necessary safety precautions are overlooked, unwanted accidents might happen

Weighing 9.5 pounds, this garage heater is wholly portable. Worth mentioning is the auto shut-off system.

That is to say, the unit automatically turns off if it identifies low oxygen levels. The same applies when you pick the unit up. In other words, this feature aims at maximizing your safety – which is great, considering that propane garage heaters pose a range of safety issues.

Simultaneously, the unit has a low oxygen sensor. This sensor is responsible for preventing the buildup of carbon monoxide – a devastating compound.


While this feature is indeed useful, we advise you to have a special carbon monoxide detector, as well. That if you plan on using the unit indoors. On a different note, you shouldn’t overlook the manufacturer’s guidelines regarding safety.

Moving on to its ease of operation, we can clearly state that this unit is really easy to use. We actually found that relighting it is effortless, even in dim lighting conditions.

Performance-wise, the area in which you live will directly impact that. At the same time, the insulation of the harage will play a role in the equation, as well.

All in all, this unit could undoubtedly qualify as the best space heater for the garage. You may use it both indoors and outdoors. Nonetheless, you should take the necessary precautionary measures before using it, to maximize your safety.

5. King Electric 120-Volt Unit Heater - Best 120v Electric Garage Heater

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If you have a small garage, a 120-volt garage heater will be a decent candidate. There’s no use to invest in a pricey unit if you can easily work with a more affordable one – right?


  • 5-year warranty
  • It is durable
  • It is easy to use
  • The built-in thermostat ensures uniform heating
  • Decent performance


  • The quality of the thermostat isn’t the best, as it is prone to fail
  • Expensive to run

To start with, this product offers good value for the money. In no more than thirty minutes, it should make your garage warmer and cozier.

Thanks to the built-in thermostat, you can regulate the temperature. This way, you can enjoy a constant temperature inside your garage.

Moving on, we should note that the construction of the unit is durable, indicating outstanding craftsmanship and attention to detail. At the same time, it is easy to use, which is always an advantage when it comes to garage heaters.


On the other side, as noted by former customers, the quality of the thermostat is subpar. That is to say, after having used the unit for a given time, it is likely to fail.

Plus, you should take into account that if your garage isn’t properly insulated, heating your space with this unit won’t suffice. Another downside is that it eats a lot of energy, meaning that it is far from being energy efficient.

However, this is the main disadvantage that comes with picking the best electric garage heater 120v over the best natural gas garage heater. Obviously, each product comes with its mixture of pros and cons.

Therefore, you should know what to expect of it before making an investment. Overall, this unit is likely to address your needs if your garage is small. Otherwise, you might find it incapable of maintaining a comfortable temperature.

Things To Consider Before Buying The Best Garage Heater

What makes the best heater for the garage? This is a question that naturally emerges during the shopping process. It is critical to get acquainted with a range of essential features that will significantly simplify the shopping process.

Heating Wattage

An important consideration when looking for the best garage heater is its wattage rating. The wattage measures the energy conversion rate of an electric heater or the speed at which it transforms electricity into heat.

As a general guideline, you should have 10 watts of power for a square foot. Let’s look at this example: if your garage has roughly 550 square feet, your garage heater’s wattage should be 5,500 (550 x 10).


Another way in which you can determine that is by multiplying the amperage with voltage. To be more specific, if a 120-volt garage heater is rated for up to 45.8 watts, then, the maximum wattage would be roughly 5,500 (45.8 x 120).

Ultimately, the size of your garage should determine the required heating wattage of the unit you choose.

Do You Have A 240v Socket?

There are numerous garage heaters that are more powerful than typical appliances. We’re referring to heaters that don’t use standard 110-120-volt outlets, but instead, require a 240-volt socket.

120-volt garage heaters can be simply plugged into household outlets. On the other side, heaters with 240 volts generate more heat; therefore, require more power.

In this view, you should check your garage’s wiring beforehand. There is a slight chance that your garage is already equipped with adequate wiring for powerful appliances. Still, this isn’t the norm.

That’s why you should check the total amperage rating of your electrical socket before investing in the best garage heater. At the same time, you should be 100 percent sure that your house can handle the amperage and voltage requirements. As a rule of thumb, most heaters use up to 20 amps.

If you aren’t familiar with this topic, perhaps it would be a good idea to hire a professional to guide you.

How Large Is Your Space Vs. Heating Needed

When shopping for the best garage heater, the size of your garage is a fundamental consideration. Say, if your garage is relatively modest in size, a 120-volt unit might be preferred. Otherwise, you might end up paying for a more expensive unit that you don’t necessarily need.

Additionally, smaller garages benefit from electric heaters, for the most part. On the other side, if you have a larger space, investing in a heater with a 4,000 or 5,000 wattage rating is highly advisable.

Don’t forget to consider the height of your ceiling, as well. Considering that your ceiling is rather tall, a more powerful heater will be required for maintaining a decent temperature during the coldest months.

How Many BTUs Is A Gas Heater?

While wattage is used to detect the heating prowess of electric models, BTU is utilized for measuring the power released by gas-based heaters. BTU stands for British thermal unit.

In comparison to the watt, BTU is a unit of energy. A unit’s BTU/h should accurately outline the amount of heat a gas heater generates, per hour. You should also note that 3.41 BTU/h equals 1 watt.


Concurrently, you should know that BTU measures the amount of energy contained in a specific volume of flowing liquid. Therefore, it establishes the heating power of gas-powered heaters.

There are two fundamental elements that should define how many BTUs you need. The first one is the size of your garage. And the second one is the climate in which you live.

It makes sense that it takes more energy to heat a larger garage than a smaller one. That being said, the more BTUs offered, the more powerful the gas heater will be. The larger your garage, the more BTUs you’ll require. It’s as simple as that.

Safety Measures

The best garage heater is the one that is equipped with the right assembly of safety features. Not only that you should pick the installation spot most carefully in order to maximize your safety, but you should also check the unit’s specifications.

First and foremost, the circuit that feeds the heater should handle the amperage and voltage required by your unit. Secondly, under no circumstances should you block vents, exhausts or any other openings that your heater might have.

Furthermore, manufacturers recommend clearances to ceilings, walls, and combustibles. Therefore, make sure you have them installed before you get the best garage heater for your needs.

Plus, if you want to get a propane garage heater, there are certain safety measures you should take as well. For example, you shouldn’t store any flammable materials in your garage. Also, there should be enough oxygen to facilitate the proper combustion of the propane.

Weight And Size

Garage heaters can be portable or mounted. It’s up to you to determine what you expect of the best garage heater. Do you want to mount it on the ceiling or wall? Or would you prefer having the option of moving it around, depending on your needs?

For instance, if you plan on using the heater in other spaces, getting the best garage heater that is easy to move around would make sense. On the other side, if you don’t have enough space, mounting it on the wall or ceiling would be more appropriate.

Either way, the weight and size of the unit shouldn’t be overlooked.


To wrap it up, investing in the best garage heater can make your space comfy and usable. This way, you can use your garage as a workshop or storage space, without worrying that the frosty weather stands against you.


However, before getting such a unit, it is critical to insulate your garage accordingly. Otherwise, you’ll be dealing with major heat losses, which will also jeopardize the energy efficiency of the unit, especially over the course of time.

On a final note, we hope that our reviews have given you a few guidelines regarding what makes the best garage heater. If you have other questions, feel free to leave them in the comment section! Also, make sure you check our detailed, comprehensive product reviews that we have coming for you. 


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