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The Best Garage Heater - 2021

Last updated on February 19, 2021

We looked at the top 16 Garage Heaters and dug through the reviews from 158 of the most popular review sites including and more. The result is a ranking of the best Garage Heaters.

Best Garage Heater

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Our Picks For The Top Garage Heaters

Show Contents
Our Take
Experts Included
Pros
Cons
  #1

ISILER Ceramic Garage Heater, 1500-Watt

Don't Waste Your Money Seal of Approval

ISILER

Ceramic Garage Heater, 1500-Watt

Overall Take

Experts Included
DWYM Outdoor and Garden Experts plus HVAC Training 101, Best Home Fixer, BestReviews, Agern, Farmi Homie, The Blazing Home. Along with user reviews from Amazon.
Pros
" Equipped with a thermostat which can be adjusted according to your preference. Heating element does not consume oxygen and does not produce any flames or lights. Designed to be quite compact and lightweight, so it is easy to move around..."
Cons
"It gets too hot to touch."
  #2

Dr Infrared Heater Portable Space Heater, 1500-Watt

Dr Infrared Heater

Portable Space Heater, 1500-Watt

Overall Take

Safe and Energy EfficientThe energy-saving Dr Infrared Heater Portable Space Heater, 1500-Watt can heat a large room with ease.

Experts Included
DWYM Outdoor and Garden Experts plus . Along with user reviews from Amazon.
  #3

Mr. Heater 60,000 BTU Portable Propane Forced Air Heater

Mr. Heater

Portable Propane Air Heater

Overall Take

Heat Spacious Areas ContinuouslyMaintain comfortable warmth in up to 1,500 square feet with the Mr. Heater Portable Propane Air Heater.

Experts Included
DWYM Outdoor and Garden Experts plus . Along with user reviews from Amazon.
  #4

Dr. Infrared Heater DR-988 Garage Heater

Dr. Infrared Heater

DR-988 Garage Heater

Overall Take

Powerful and QuietThe Dr. Infrared Heater DR-988 Garage Heater circulates heat throughout your space.

Experts Included
DWYM Outdoor and Garden Experts plus Best of Machinery, The Consumer Guide, Globo Turf, Gadgets, Home Climate, Comparaboo and 10 more. Along with user reviews from Amazon, Home Depot and Walmart.
Pros
" The DR988 Garage Heater is perfect for heating large spaces thanks to its quiet, powerful circulating fan that allows the warmth to flow throughout your workspace. Capable of providing up to 19,100 BTUs, this space heater features two thermostat settings...."
Cons
"It is not designed for standard residential use and requires a 220V plugin which is rare in many circumstances."
Don't just take for granted what one reviewer says. Along with our own experts, DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
23

Products Considered

We identified the majority of the garage heaters available to purchase.
16

Products Analyzed

We then selected the leading and most popular products for our team to review.

View All Product Rankings

158

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources including: Best Reviews Guide, HVAC Training 101, Best Home Fixer, BestReviews, Agern.

28,309

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including

Our experts reviewed the top 16 Garage Heaters and also dug through the reviews from 158 of the most popular review sites including and more. The result is a ranking of the best of the best Garage Heaters.

DWYM is your trusted roduct review source. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.

Don't Waste Your Money Seal of Approval
Look for the DWYM seal for products that are the best in their category.

The Best Overall

ISILER Ceramic Garage Heater, 1500-Watt


Our Expert Score

7.5
6 expert reviews

User Summarized Score

8.6
2,529 user reviews

Our Take

What other experts liked

Equipped with a thermostat which can be adjusted according to your preference. Heating element does not consume oxygen and does not produce any flames or lights. Designed to be quite compact and lightweight, so it is easy to move around...
- HVAC Training 101
Instant warm up. Self-regulating element and thermostat for temperature control. Made from fire retardant materials.
- Best Home Fixer
Other products we considered
- BestReviews
Made from flame-retardant materials. The ability to self-adjust the temperature control. Quick start, almost instantaneous.
- Agern
Safe and Reliable: Made with fire retardant materials. Warms up the room instantly. Very Portable Unit. Very Durable.
- Farmi Homie
Lightweight and easy to carry with the handle. Rapid heating by the ceramic heating plate. Adjustable thermostat to set temperature. Keeps the air moist. Safe due to auto shut-off option.
- The Blazing Home

What other experts didn't like

On/off switch melts from the inside after long-term use. Fans do not stop even after it reaches the set temperature.
- HVAC Training 101
It gets too hot to touch.
- Best Home Fixer
The case is too hot.
- Agern
Users have complained of the fan being noisy. Unlike most of the other heaters in this category, this unit is not cool to touch.
- Farmi Homie
Should not be used outside. The fan can be noisy sometimes.
- The Blazing Home

Overall Product Rankings

ISILER Ceramic Garage Heater, 1500-Watt

1. ISILER Ceramic Garage Heater, 1500-Watt

Overall Score: 9.8
Reviews Included: 8

Dr Infrared Heater Portable Space Heater, 1500-Watt

2. Dr Infrared Heater Portable Space Heater, 1500-Watt

Overall Score: 9.7
Reviews Included: 1

Mr. Heater 60,000 BTU Portable Propane Forced Air Heater

3. Mr. Heater 60,000 BTU Portable Propane Forced Air Heater

Overall Score: 9.1
Reviews Included: 1

Dr. Infrared Heater DR-988 Garage Heater

4. Dr. Infrared Heater DR-988 Garage Heater

Overall Score: 9.0
Reviews Included: 20

NewAir G73 Electric Garage Heater

5. NewAir G73 Electric Garage Heater

Overall Score: 8.7
Reviews Included: 12

AgiiMan Portable Electric Garage Heater

6. AgiiMan Portable Electric Garage Heater

Overall Score: 8.6
Reviews Included: 2

multifun Portable Ceramic Electric Heater, 1500-Watt

7. multifun Portable Ceramic Electric Heater, 1500-Watt

Overall Score: 8.6
Reviews Included: 1

Mr. Heater Portable Propane Radiant Heater

8. Mr. Heater Portable Propane Radiant Heater

Overall Score: 8.6
Reviews Included: 6

Dyna-Glo Liquid Propane Forced Air Heater

9. Dyna-Glo Liquid Propane Forced Air Heater

Overall Score: 8.6
Reviews Included: 25

Fahrenheat FUH54 Garage/Utility Heaters

10. Fahrenheat FUH54 Garage/Utility Heaters

Overall Score: 8.6
Reviews Included: 29

Dr. Infrared Heater Hardwired Garage Heater

11. Dr. Infrared Heater Hardwired Garage Heater

Overall Score: 8.5
Reviews Included: 23

Optimus Ceiling Mount Portable Heater

12. Optimus Ceiling Mount Portable Heater

Overall Score: 8.5
Reviews Included: 16

Dimplex DGWH4031G Garage Heater

13. Dimplex DGWH4031G Garage Heater

Overall Score: 8.3
Reviews Included: 12

Comfort Zone Ceiling Mount Quartz Heater

14. Comfort Zone Ceiling Mount Quartz Heater

Overall Score: 8.3
Reviews Included: 12

Homegear Electric Portable Space Heater

15. Homegear Electric Portable Space Heater

Overall Score: 8.2
Reviews Included: 18

King Electric KB2410-1-B2-ECO 240 Garage Heater

16. King Electric KB2410-1-B2-ECO 240 Garage Heater

Overall Score: 8.1
Reviews Included: 9

Our Garage Heater Findings


Dr. Infrared Heater DR-988 Garage Heater

What We Liked: This industrial-strength heater quickly heat up to 600 square feet and allows warmth to flow through your work area. Keep warm safely thanks to the integrated automatic overheat cutoff protection. A built-in thermostat makes this unit energy efficient and increases comfort.


multifun Portable Ceramic Electric Heater, 1500-Watt

What We Liked: Make your work area feel cozy in any weather in seconds with this portable heater. With two modes, you can easily maintain a comfortable temperature and limit energy use. Numerous safety features, such as flame resistant materials, overheating protection and a sturdy, triangular design make it a dependable option.


Mr. Heater 60,000 BTU Portable Propane Forced Air Heater

What We Liked: Designed for jobsites, this liquid propane heater can keep large areas comfortable. The forced air heater is equipped with the Quiet Burner Technology, making it up to 50% quieter than standard propane heaters. It is capable of heating up to 1,500 square feet for up to 14 hours using a 20-pound tank on the lowest setting.


Dr Infrared Heater Portable Space Heater, 1500-Watt

What We Liked: With features such as a remote control, programmable timer and dual heat options, keeping warm is a snap. With a cutting edge seven-inch blower, the air is heated quickly even on low speed. You’ll appreciate the ultra-quiet blower, as well.


NewAir G73 Electric Garage Heater

What We Liked: Rugged and powerful, this heater can stand up to harsh conditions and provide ample warmth. Since it is hardwired to a breaker, there’s no need for propane or extension cords. Adjustable louvers and an head that tilts easily allow you to direct heat where you need it most.

Our Expert Consultant

Vicki Liston 
Home Improvement Expert

Vicki Liston writes, produces, and narrates “On The Fly…DIY,” an award-winning home improvement and DIY show of unique project tutorials for the casual DIY’er.

Home improvement and all things DIY have been Liston’s passion since she bought her first house in 2007 and she started making video blogs in 2014. She’s performed hundreds of DIY projects, from small ones to major, wall-smashing renovations and can teach you how to make a trendy DIY barn door for cheap. The proceeds earned from “On The Fly…DIY” are donated to no-kill animal shelters and rescue organizations. You can find her show on Prime Video.

Our Garage Heater Buying Guide

You don’t want to be working in a freezing cold garage this winter.  Whether your time in there is limited or extended, you won’t regret investing in a garage heater. With a flip of the switch, your garage will be toasty warm, and your motivation will skyrocket. But there are several things to consider before purchasing a garage heater.

First, you need to look at appropriately sized units for the size of your garage. For calculated perfection, the rule of thumb is 10 watts per square foot of space. If you have an average-sized, single-car garage, you will want to check out units that are below 5,000 watts or roughly 15,000 BTUs, whereas a two- or three-car garage will need a much more powerful heater with roughly 10,000 watts or 30,000 BTUs. If you want to be exact, you can find the cubic feet of your garage by multiplying the length of the garage from front to back by the width of the front of the garage by the height of your garage.

You should also consider the efficiency of your garage.

“Make sure you’re not trying to heat the rest of the world,” says Vicki Liston, our resident home improvement expert. “Are the windows and the garage door energy efficient? Is there weather stripping around all the doors and windows? You’ll want to prep the space to reduce or minimize heat loss.”

Second, there are a few types of heaters on the market. Electric garage heaters are either hardwired into your home or plugged in with a cord through an appropriate outlet. These units can be turned on easily with a flip of a switch or by adjusting a thermostat. Some electric models come with a mounting bracket and adjustable thermostat. Consumers that frequent their garage can set these units to the desired temperature and the unit will click off once the temperature is reached. Other models offer the option of portable or ceiling-mounted units that are also electric.

You can opt for a propane- or gas-powered heater as an alternative. These heaters require ventilation to the outside as well as wiring, and often require an ignition start for the unit to be turned on. “Whether the unit is freestanding and portable or mounted on a wall, their deadly carbon monoxide fumes must be directed outside via a pipe for the heater to operate safely,” says Liston.

Some propane units feature forced hot air, portability and adjustable angling for directed heating. With so many possible safety features including tip-over shutoffs, extended hoses and backpressure switches, there are plenty of options for the safety-conscience consumer.

For additional options, you can choose from forced-air heaters that blow the air directly over hot coils to warm the air or infrared heaters that convert energy to heat when absorbed by surrounding objects. If a set-it-and-forget-it unit is what you want, look for a hardwired, infrared, commercial unit with an adjustable thermostat. These heaters have different adjustments for optimum airflow and heat control.

Third, you’ll want to know the cost of each unit and any installation fees associated with the unit to make sure it is within your budget. The installation fees vary greatly between the different options, so be sure to talk with a home improvement specialist when determining costs. Prices on the actual units will vary throughout the year, so planning ahead might be a good idea when making this purchase. You’ll also want to check on the warranties, should anything go wrong.

DWYM Fun Fact

  • The Roman Empire thrived for so long because it was a civilization of extreme ingenuity. Case in point: they were the first to use a “central heating” system. They placed pipes in their walls and in their floors that released forced hot air from furnaces. This was called the “hypocaust” system by the Romans.
  • Natural gas was used by Chinese who trapped the gas with bamboo and circulated it through bamboo pipes in roughly 500 B.C.
  • Philadelphia Gas Works was the first company in the country to offer natural gas. It opened in 1836 and has the record for oldest gas company in the United States.
  • Natural gas, in its natural state, is scentless. The energy companies decided to add an odor, so users can be aware of any leaks.
  • In the Northeast, electricity and natural gas account for the majority of the home heating sources while wood, propane and kerosene are roughly 15 percent.
  • 7.2 trillion degrees Fahrenheit is the hottest ever manmade temperature. It was created in Brookhaven Natural Laboratory in New York.

The Garage Heater Tips and Advice

  • Something to think about when purchasing a garage heater is the way it operates within the space. If you are a painter, or most of your projects include sanding, you really don’t want to install a forced-air heater. They stir up dust and dirt to a small degree and can make those types of projects difficult.
  • For quiet heating options, infrared is your best choice. Infrared heating has become quite popular over recent years because it is not so harsh on our bodies. However, you’ll want to think long and hard about where you install it since it takes a little bit longer to heat up the space.
  • Remember that if you choose a propane-powered unit, you will need to pay for outside venting when you have the unit installed.
  • For upfront costs, the forced air garage heaters will be less costly versus the infrared units.
  • Before starting your research on the correct unit, it is vital to know the insulation of your garage walls as well. The thickness of the walls also plays a large part in how much power you’ll need in a heater for that space. For example, if you have a single-car garage but it is not insulated and has thin walls, you may want to consider a heater with a more powerful output than what is recommended for the square footage.
  • Most portable garage heaters require a 240-Volt outlet and you need to ensure the breaker can accommodate the amps (typically around 20 amps) so you don’t trip the breaker.
  • No matter what you are purchasing, you should always check the warranty of the unit.
  • Always have a licensed, insured professional install the unit so you are sure of the highest safety standards.
  • To give your garage heater a boost, consider getting weather stripping for windows and doors. It is inexpensive and makes a significant difference in conserving energy.
  • If you use a portable space heater, try to find one with a thermostat so you have the safety feature of automatic turnoff as well as the energy-saving feature it provides.
  • Routinely clean off any dust or dirt that may have settled on your garage heaters. If you have a gas garage heater, it’s important to have it serviced once a year before the winter season.
  • Some garage heaters are sold separately from their thermometers and cords so be sure to read what is included in your purchase.

About The Author

Genevieve Nino
Genevieve Nino 

Genevieve Nino is a professional writer located in the Topsail Island area of North Carolina. Genevieve's expertise in home and garden comes from owning two homes by the time she was 30 years old. She planted and cultivated her own garden at her first home for two consecutive years and, in an attempt to keep things pesticide-free for her family's health, she researched and acquired quite a bit of gardening techniques. She and her husband have tackled numerous house projects, including putting their own deck on their first home and endless amounts of painting. Her writing in this niche includes interior design clients and landscaping tool reviews.