Top 4 Best Space Heaters For Garage – 2020 Update

It’s no fun to fiddle with nuts and bolts while your fingers are frozen, right? While winter keeps setting it in, equipping the best space heater for garage seems to be a good idea to keep it comfortably warm while you’re working there. Here are the top-rated options on the market:

  • Mr. Heater F232000 MH9BX – Best portable space heater
  • Mr. Heater F260550 – Best gas ceiling mounted space heater
  • Fahrenheat 1874-5000W – Best electric ceiling mounted space heater
  • Cadet 67507 – Best wall mounted space heater
sample-table__image Best portable space heater Mr. Heater F232000 MH9BX
  • Designed with versatile usage in mind, it is nearly 100% energy-efficient to deliver incredibly clean burning
  • Heat Area: 225 square feet
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sample-table__image Best gas ceiling mounted space heater Mr. Heater F260550
  • Providing up to 50,000 BTU/hr, this is a strong heater for a garage with 2 to 3 cars
  • Heat Area: 1250 square feet
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sample-table__image Best electric ceiling mounted space heater Fahrenheat 1874-5000W
  • Releases no unpleasant gasses and fumes, it works quietly to heat up your garage with less heat loss
  • Heat Area: 400 square feet
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sample-table__image Best wall mounted space heater Cadet 67507
  • An efficient wall-mounted garage heater without ductwork installation for modest garage spaces
  • Heat Area: 200 square feet
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Mr. Heater F232000 MH9BX – Best portable space heater

Mr. Heater F232000 MH9BX
Mr. Heater F232000 MH9BX Buddy 4,000-9,000-BTU Indoor-Safe Portable Propane Radiant Heater, Red-Black

  • Provide heat to those places that electric heaters can’t do
  • Multiple uses: For both indoor and outdoor with safety
  • Clean burning to be eco-friendly and human health-friendly
  • Nearly 100% efficiency for fewer fuel costs and more heating capability


  • Compared to other similar products, it offers a smaller heating area

The Mr. Heater F232000 we are starting with is one of the most economical and convenient garage heaters as it starts working instantly thanks to the radiant heating principle.

In this list, it’s also the most portable design that only takes around 13.4 x 15 inches of space while emphasizing a fold-down handle to minimize the storage area.

The manufacturer characterizes this unit with two settings – a 4,000 BTU/hr. and a 9,000 BTU/hr. which can heat up spaces up to 225 Sq. ft. Not to say that it’s approved for both indoor and outdoor use.

While testing, we’re also amazed by its nearly 100% energy efficiency to deliver incredibly clean burning. Your safety, on the other hand, is always under control due to its auto shut-off feature.

Product Specs

Power SourcePropane & electricity
Heat SettingsTwo heat settings: 4,000 & 9,000 BTU/Hr.
Heating Area225 square feet
Dimensions7.7 x 13.4 x 15 inches
Weight9 pounds
Warranty1 year
Highlight Featuresapproved for indoor/outdoor use; clean-burning; nearly 100-percent efficient, auto shut-off, fold-down handle; swivel-out regulator; connects to propane tank

Designed with versatile usage in mind, the Heater F232000 is a useful portable heater for any handymen who are looking for a convenient way to heat up his workshop.

Mr. Heater F260550 – Best gas ceiling mounted space heater

Mr. Heater F260550
Mr. Heater F260550 Big Maxx MHU50NG Natural Gas Unit Heater

  • Multiple choices of ventilation mounting to meet different local codes and restrictions
  • Super-easy installation
  • Don’t require a high current electrical supply


  • No included thermostat or Oxygen Depletion Sensor

The Mr. Heater F260550 highlights its 50,000 BTU/hr. powerful motor that can heat up an enormous space of 700 – 1,250 ft. while the major power source is neutral gas for money saving.

That’s why the unit only needs a usual 115V AC circuit.

Despite the unbeatable powerful motor, this big boy features a low profile that you can mount just 1” off the ceiling with easy access. The ventilation setting meanwhile is versatile – either horizontally and vertically mounted.

Another big bonus is the easy gas connection as well as under-control thermostat and A/C terminals. The only thing you should remember is to avoid storing it near flammable items. We’re sure you know why.

Product Specs

Power SourceGas
Heat SettingsSingle – 50,000 BTU/hr.
Heating Area1250 sq. ft.
Dimensions25 x 18.5 x 17 inches
Weight63 pounds
Warranty3 years
Highlight Featureseasy outside access to thermostat and A/C terminals and gas connection, powered exhaust allows for vertical or horizontal venting, Natural Gas to Liquid Propane conversion kit included

Providing up to 50,000 BTU/hr., Mr. Heater F260550 is the best gas ceiling mounted space heater for a 2- to 3-car garage.

Fahrenheat 1874-5000W – Best electric ceiling mounted space heater

Fahrenheat 1874-5000W
Fahrenheat FUH Electric Heater for Garage, Factory, Basement, Warehouse, and Outdoor Use, Beige

  • Can be easily mounted vertically or vertically
  • Included a thermostat for better regulating warm air to meet your constant heating needs
  • Adjustable louvers for directing the heat
  • Huge temperature ranges


  • No power lights nor the “Off” button to shut down
  • The knob adjustment is silly
  • Lack of instruction

While bringing an industrial-style construction and materials, the Fahrenheat 1874-5000W offers far fewer BTUs than other similar counterparts, which we find it’s a big bonus for small garages.

Why? – You might ask.

It’s because the unit releases no unpleasant gasses and fumes so, you don’t need to open windows for ventilation. For that reason, you can avoid ultimately the heat loss during this process.

Despite an electric space heater, the included thermostat helps regulate warm air constantly and comfortably throughout the room when you need it. Last up, it works quietly.

Product Specs

Power SourceElectricity
Heat SettingsTwo settings: 45º to 135º Fahrenheit
Heating Area400 Sq. ft
Dimensions12.5 x 12.4 x 14 inches
Weight24 pounds
Warranty1 year
Highlight Featuresrugged, heavy-duty industrial type heater, built-in single pole thermostat adjusts from 45º to 135º Fahrenheit, built-in ceiling mount bracket, adjustable louvers

Highlight a huge range from 45º to 135ºF in a compact, lightweight package, the Fahrenheat 1874-5000W is the best electricity ceiling-mounted space heater for your garage.

Cadet 67507 – Best wall mounted space heater

Cadet 67507
Cadet 67507 Com-Pak Plus Fan Heater 2000 W, 240 V, White

  • Can warm space of 200 feet in less than 5 minutes with safety and spread-through heat regulation
  • Made in the USA
  • Friendly for pets and kids


  • There’s no way to know the actual temperature that the heater will auto shut off
  • The wall mount holes and front covers don’t match

For modest garage spaces, the Cadet 67507 with emphasis on 1,500W heating capacity is the best affordable and efficient way to add warmth when temperature plummet.

It highlights a fast-heating coil element that can provide heat to a 200-foot area in less than 5 minutes without being too hot (thanks to the included adjustable thermostat). Combing with a powerful, quiet-operating fan, such warm air will be spread throughout to every corner.

The Cadet 67507 is made in the USA so you can ensure the quality (at least in our standard).

It’s also considered a safe, user-friendly design with no sharp edges, multiple mounting options, and an auto shut-off feature.

Product Specs

Power Sourcecorded electric
Heat SettingsLow setting: 40 ºF

High setting: 85 ºF

Heating Area200 sq. ft.
Dimensions5.2 x 14 x 9.5 inches
Weight7.05  pounds
Warranty1-year limited warranty.
Highlight Featureswarm-up in a hurry with a fast-heating coil element, efficient, quiet fan, high-temperature safety shut-off, made in the USA

For people who want an efficient wall-mounted garage heater without ductwork installation, the Cadet 67507 might be what you’re after.

How to choose the best space heater for garage (buying guide)

Best garage space heater


Two most popular types of garage heaters are:

  • The Forced-air
  • The Infrared
  • The Propane
 Forced-air HeatersInfrared HeatersPropane Heaters
How they workDirectly heating the roomTransferring the heat in the airPowered by fuel to heat up the room
Measuring unitWatt (W)Watt (W)BTU per Hour (BTU/hr.)
ProsHeat spaces quickly

Safer to use


Provide more comfortable heat

The cheapest

Begin their operation faster

Don’t require electricity while fuel cost is cheaper

Highly portable


Need time to operate the unit

Less productiveRequire stricter stipulations to ensure safety
Best forLarge spacesSmall spacesSmall to medium spaces

Garage Area & Heater’s Thermal Output

To get the most heating efficiency, you should firstly, determine your garage area as well as the needed amount of heat and secondly, find a heater with suitable thermal output.

The recommended number of watts to heat your garage is calculated by multiplying the room area by 8 and round up the result.

For small garages of under 150 Sq. feet, choose a 1,000 – 1,500W electric heater (or a 5,000 BTU/hr. propane heater)

For medium garages of 250 Sq. feet, choose a 1,500 – 2,500W electric heater (or 5,000 – 10,000 BTU/hr. propane heater)

For large workshops, garages or warehouses of 500 – 600 Sq. feet, choose a 2,500 – 5,000W electric heater (or 17,000 – 25,000 BTU/hr. propane heater)

Safety features

While choosing a garage heater, you also should consider these safety features:

  • Overheat protection: To ensure the heater to turn itself off when the surrounding temperatures are higher than a specific mark, which reduces damage to the internal parts and user’s comfort
  • Tip-over switch: To automatically shut the heater down when it’s knocked over
  • Wire guard or Cool-touch: To protect users from its hot surfaces

Who makes the best space heater for garage?

Best garage heater brands

Mr. Heater

This is a Mr. Giant in the space heater industry. Particularly in the garage models, they tout their portable liquid propane lines as the most popular in North America and at least 85% of the customers were totally satisfied with it.


Fahrenheat is another OG in the world of garage heaters and known for its powerful products to be the top choice ever for small to medium spaces.


Customers also chose Cadet as one of their favorites for a portable, powerful-heating electric garage heater that always stands out with versatile uses, even in the summer.


Best Space Heaters For Garage

Are infrared heaters good for a garage?

Compared to traditional heating systems, infrared heaters are 50% more energy efficient. It highlights two biggest advances:

  • Stop heat escape through the ventilation
  • Avoid sucking the moisture out of the air

Hence, even while the garage door is opening, you can rest assured that it doesn’t lose heat.

Where should I place my garage heater?

There are differences between the infrared and the forced air heater when it comes to choose a proper place to put it in your garage.

With an infrared ceiling-mounted heater, it should be at least 24” far off the back and side walls while 7’ of clearance between itself and the floor. Besides, keep the heater at least 72” between any combustible items in the room and its bottom.

If you ask for more than one, leave 36” more between them.

With a forced-air heater, it must be set up at the coldest back corner of the garage and in the safety space zone between the ceiling and the heater (measured by deducting the heater’s height and another 4” from the ceiling’s).

Besides, ensure it offers 6’ of clearance between itself and the floor.

Is it cheaper to heat one room with electric heater?

It depends on three things:

  • How large of your whole house
  • Type of the heater

With a storage heater or a larger house or an open-plan house, heating one room is cheaper as long as all the doors and windows are shut.

Conversely, with a smaller house, heating the whole house will be cheaper.

Are propane heaters safe in garages?

As long as you follow tightly to these two stipulations, using propane heaters in your garage is definitely safe:

  • Isolate it from flammable materials
  • There must be enough combustion and adequate air to operate

Do space heaters pull a lot of electricity?

Yes, space heaters pull a lot of electricity so, to use it sparingly, only turn the unit on when you’re at home and want to enjoy the heat. Besides, only use it in an enclosed room.


With a thorough product selection and the expert’s buying guide, this article has undoubtedly given readers many useful ideas to choose the best space heater for garage. We also hope our answers to some frequently asked questions have cleared your wondering.

Thanks for reading!

More about home garage:

Best 240v Electric Garage Heaters

Best Refrigerators For Garage

Best Garage Storage Cabinets

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