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Best Garage Heaters of 2021

Whether you use your garage as a mini gym or a storage space for your tools, it will likely become unusable during the winter because of the drop in temperatures. Keep reading to learn about the best garage heaters available on Amazon and how to keep your space warm all year long.

Garage Heater Adobe

A garage heater will warm your garage like your HVAC system warms the rest of your house, making the space usable during the colder months. When it comes to garage heating, you can choose a unit powered by electricity, propane, or natural gas, and it can be freestanding or mounted to the wall or ceiling. Read on for the best garage heaters available on Amazon.

Best Moving: Taotronics TT-HE001 Space Heater

  • $70

Prices taken at time of publishing.

This heater pulls in cold air from the garage, warms it, and pushes the warm air back out into the space. Because of the heater’s oscillating feature, every part of the garage receives heat. To control the warmth in your garage, you can use the LED on the top of the heater or the remote control from a few feet away.

Key Features

  • Corded electric fuel source
  • Heat output of 1,500 watts
  • Available in black
  • Can be controlled with its display or by a remote
  • Has a built-in handle

What Customers Are Saying

Over 1,700 Amazon customers have reviewed this product, giving it an average score of 4.9 stars out of 5. Ninety-two percent of customers gave the product 5 stars and 5% of customers gave it 4 stars.

Customers said the heater was small but powerful. The product is slim and can fit in tight spaces, but it’s still capable of heating a large area quickly. Customers were also pleased with some of the heater’s features, like its eco mode, 12-hour timer, and remote control. However, a few customers received defective units that stopped working after a few uses.

Best Propane: Mr. Heater F232000 MH9BX Buddy Portable Propane Radiant Heater

  • $116

Prices taken at time of publishing.

Natural gas heaters are convenient because they hook directly to your natural gas line. However, not every house uses natural gas, making this propane heater a good alternative for those who don’t have a natural gas line. This heater is lightweight and features a carrying handle, so you can take it with you on trips or move it around in your garage.

Key Features

  • Propane fuel source
  • Heat output of 4,000 to 9,000 BTUs to heat 225 square feet
  • Available in red or black
  • Has a handle

What Customers Are Saying

Over 7,000 customers gave this product an average score of 4.7 stars on Amazon. Of these reviews, 94% of customers gave the product 4 or 5 stars. While this heater works in a garage, most of the customers used it for outdoor activities, like camping or sitting on their porch. Customers liked the heater’s safety features, including its tilt and low-oxygen sensor. However, there were some complaints from customers who struggled to keep the pilot light lit.

Best Retro: Dr. Infrared Heater Portable Space Heater

  • $109
  • $250
  • 57% off

Prices taken at time of publishing.

This electric heater has a retro design, making it a good choice for those who are concerned about looks as well as function. It uses 1,500 watts to heat a space, just like the other electric heaters in this review. This heater also has four wheels on its bottom that allow you to push it around your garage if one area is receiving less heat than the rest of the space.

Key Features

  • Corded electric fuel source
  • Heat output of 1,500 watts
  • Available in cherry or black
  • Can be controlled with its display or by a remote
  • Has four caster wheels

What Customers Are Saying

With over 7,500 customer reviews on Amazon, this heater received an average score of 4.5 stars. Eighty-nine percent of customers gave it 4 or 5 stars, while the remaining customers gave it 1, 2, or 3 stars.

Most customers used this heater to heat parts of their home that their HVAC system didn’t reach well, like a basement or garage. They were able to leave it on for hours by setting it to the desired temperature, and the machine would automatically turn on and off to maintain that temperature. However, when customers received defective units that stopped working after a few uses, they struggled with customer service to get a diagnosis and a new part.

Best Control: Heat Storm HS-1500-PHX-WIFI Infrared Heater

  • $127
  • $150
  • 16% off

Prices taken at time of publishing.

While the other electric heaters in this review have a remote and display for controlling the heater’s heat output, this heater has a display and a mobile app, allowing you to heat your garage from the comfort of your home. The heater is also mounted to the wall and doesn’t take up valuable floor or surface space.

Key Features

  • Corded electric fuel source
  • Heat output of 1,500 watts
  • Available in white
  • Can be controlled with its display or through an app
  • Mounted to the wall

What Customers Are Saying

Close to 2,000 Amazon customers have reviewed this unit so far, giving it an overall rating of 4.4 stars. The percentage of positive reviews is slightly lower than that for the Dr. Infrared Heater, with 86% of reviews being 4 or 5 stars.

Customers liked the design of this heater because it’s slim and doesn’t take up too much wall space. They also said that it heated the space quickly and did so without making a lot of noise. A common complaint from customers was that they couldn’t get the unit to work because it kept showing an error message on the screen.

Best Natural Gas: Mr. Heater F260550 Big Maxx Natural Gas Unit Heater

  • $349
  • $500
  • 31% off

Prices taken at time of publishing.

If your home already has a natural gas line, we recommend choosing this gas heater for your garage. It mounts to your ceiling, connects to your gas line, and pushes exhaust out of the garage using a ventilation system. Additionally, this heater heats a larger area than the rest of the products in this review, working on garages as large as 1,250 square feet. This makes it best for homeowners with a three-car garage or larger.

Key Features

  • Natural gas fuel source
  • Heat output of 50,000 BTUs to heat 1,250 square feet
  • Available in gray
  • Mounted to the wall

What Customers Are Saying

This heater has around 400 reviews on Amazon, which is far less than the other products in this review. Eighty-four percent of these customers gave the product a 4- or 5-star review.

Customers said this heater was easy to install and installed it in less than a day, despite having limited plumbing and electrical experience. However, several customers complained about the heater’s noise. When they took apart the heater, they found that a loose blade was making the noise and had to contact the manufacturer for a new part.

How To Select a Garage Heater

Before purchasing a garage heater, consider what type of heater will work best for your garage, its fuel source, its heat output, and other factors. Read our guide below to learn about some of the factors that will help you make your decision.

Type of Garage Heater

Garage heaters can be broken down into two categories: fan-forced/forced-air and infrared/radiant.

Fan-Forced/Forced-Air Heaters

Fan-forced or forced-air heaters draw in cold air, warm it, and blow it back out into your space, making them efficient at heating large spaces. However, they make a lot of noise because they’re constantly pushing out the air.

Infrared/Radiant Heaters

Radiant or infrared heaters warm the objects that they’re directly pointed at and aren’t as efficient at heating a space. However, they provide steady warmth without stirring up dust particles.

Fuel Source

Your garage heater will be powered by electricity, natural gas, or propane.

Electricity

Electric heaters are the most popular because they’re easy to run. Simply plug them into an outlet and receive instant heat. However, they can be expensive because they use electricity from your home and can increase your monthly utility bill.

Natural Gas

Natural gas heaters are a good option if you already have a natural gas line in your home to run appliances and systems. They efficiently heat spaces for extended periods without increasing your electricity bill.

Propane

If you don’t have a natural gas line, you can opt for a propane garage heater. This type of heater produces similar heat to that of a natural gas heater, except it has a propane tank. Propane tanks require refilling, so unless you have an extra tank on hand, you could be left without a heat source until you get a refill.

Heat Output

Heat output is measured in wattage or British Thermal Units (BTUs). Wattage is most commonly used for electric heaters, while BTU is used for natural gas or propane heaters. The higher the wattage or BTU rating, the more heat the heater produces. Instead of purchasing a heater with the highest heat output, look for a heater with a heat output that matches the size of your garage.

Single-car garages up to 450 square feet should use a heater with 2,000 to 3,000 watts or 6,800 to 9,000 BTUs. Two-car garages between 450–700 square feet need a heater with 3,600 to 7,000 watts or 12,000 to 24,000 BTUs. Garages that can fit three or more cars need a heater with 7,000 to 9,000 watts or 24,000 to 31,000 BTUs.

Keep in mind that these numbers aren’t an exact science. If it’s the middle of February, your garage will be colder and require more heat output to warm the space.

Portability

Garage heaters are either permanent fixtures or portable units that sit on the floor or a table. If you want to reposition the unit in your garage, look for a portable heater. Portable heaters are usually electric and can be plugged into a wall outlet.

Temperature Control

Many garage heaters have built-in thermostats or heat settings, allowing you to adjust the amount of heat that comes out of the unit.

Safety Features

Most space heaters come with safety features to prevent a fire from starting. Some common features include shutting off after reaching a certain temperature to prevent overheating and shutting off after being tipped over. Some units are also cool to the touch to prevent them from burning your skin or catching nearby objects on fire.

Garage Heating Safety Tips

If you don’t properly install your garage heater or use it incorrectly, you could potentially start a fire. Here are a few safety tips to keep in mind while operating your space heater:

  • Turn off the heater when you aren’t using it.
  • Leave at least three feet of clearance between the unit and any other objects in your garage.
  • Supervise kids and pets when they’re near the unit.
  • Don’t block the intake or exhaust vents on the heater.
  • Before cleaning or maintaining the heater, disconnect it from its power source.
  • If you have a freestanding unit, make sure that it sits on a solid, flat surface so that it doesn’t tip over.
  • If you have an electric unit, plug it directly into an outlet instead of into an extension cord.

Frequently Asked Questions

What happens if I don’t put in a ventilation system with my heater?

Propane and natural gas heaters emit carbon monoxide. Without a ventilation system that takes this gas outside, it can poison the air and lead to health complications or death.

How much do garage heaters cost?

Here are some price estimates, broken down by fuel source:

  • Electric heaters: $100–$400
  • Natural gas heaters: $400–$800
  • Propane heaters: $150–$450

However, there are exceptions to this rule. For example, the Mr. Heater propane heater in this review costs under $100.

What type of heat do electric garage heaters produce?

In most cases, electrical units produce radiant heat or infrared heat to heat the objects in your garage instead of heating the air. Most of the fan-forced units you find will be powered by propane or natural gas.

To share feedback or ask a question about this article, send a note to our Reviews team at reviews@thisoldhousereviews.com.