Best Garage Heater Buyer’s Guide: Our Top 10 Picks Revealed 2020 - HVACify

Best Garage Heater Buyer’s Guide: Our Top 10 Picks Revealed

During the cold months, our garages practically turn into freezers if they are not warmed by a central heating system like the rest of our homes. Thanks to the best garage heaters, you can use your garage comfortably without burning a hole in your wallet. These efficient and powerful heaters provide an affordable way to heat your garage.

In the following guide of 10 garage heaters, we tell you our pick of the best garage heaters to buy as we head into the 2018-2019 winter season.

​Comparison Table

FAQs | Best Garage Heater

Close-up photo of a heater

​Image via Pixabay

1. What Is a Garage Heater? 

A garage heater is a free-standing heater used for the purpose of heating small interior spaces, such as your garage, outbuilding/shop, etc.

2. How Do Garage Heaters Work and What Do They Do? 

Garage heaters use electric, propane or natural gas sources to emit heat to warm up garages and other small spaces.

​3. Where Can You Buy Them? 

You can buy garage heaters at your local home supplier store or, even more conveniently online at In fact, all the heaters in our buying guide here are available on Amazon and we've provided direct product links to each one in its review summary. Just click, save money and see it when it arrives at your doorstep — all ready to warm up the space where you need it.

​How We Reviewed

​The following products were reviewed based on their features, pros and cons, prices, warranties and more. For features, we were focused on the power of each unit (expressed in BTUs), the source of its heat, its size, type of installation (freestanding or wall-mounted or ceiling-mounted) and other characteristics that made these particular products stellar standouts on the market.

​Overall Price Range of the Best Garage Heaters

​Garage heaters range in price from around $​ to $​$$. Some garage heaters cost more because they feature higher heat output and are, thus, more powerful than their more inexpensive counterparts.

​What We Revi​ewed

  • Mr. Heater F232000 MH9BX Buddy Radiant Heater
  • Optimus ​H-6011 Portable Oil Filled Radiator Heater
  • TPI Corporation Fan Forced Radiant Heater
  • Dyna-Glo Garage Heater
  • NewAir G56 Garage Heater
  • Dimplex DGWH4031 Garage/Workshop Heater
  • Dr. Infrared Heater Garage/Shop Heater
  • Fahrenheat Ceiling-Mount Electric Heater
  • NewAir G73 Hardwired Electric Garage Heater
  • Modine High Efficiency Gas Fired Unit Heater

Mr. Heater F232000 MH9BX Buddy Radiant Heater

Mr. Heater F232000 MH9BX Buddy 4,000-9,000-BTU Indoor-Safe Portable Propane Radiant Heater, Red-Black
  • 4,000- to 9,000-BTU radiant heater for spaces up to 225 square feet. Approved for indoor/outdoor use; clean-burning; nearly 100-percent efficient
  • When operating the heater at altitudes over 7,000 FT above sea level the heater may shut off.


The Mr. Heater f232000 MH9BX Buddy Radiant Heater contains 4,000 to 9,000 BTU and is capable of heating up spaces of up to 225 square feet. This clean-burning garage heater is almost 100% efficient. It features an automatic shut-off safety function in the event that that heater is tipped over, detects low levels of oxygen or if the pilot light disappears.

It also features an easy-to-use design, including a convenient fold-down handle, a wire guard and a regulator that swivels out. With so many features, this heater is a top contender for the best garage heater to buy in 2018.


  • Easy-to-use features and design
  • Compact size
  • Works well for indoor and outdoor use
  • Ample enough to heat a small garage


  • Control knob reportedly gets stuck
  • Some users said it can emit a gasoline smell
  • Others said it stopped working after short use

Optimus ​H-6011 Portable Oil Filled Radiator Heater

Comfort Zone CZ220 5,000W, Fan-Forced Ceiling Mount Heater with Dual Knob Controls
  • SPACE-SAVING DESIGN: The fan-forced heater is designed for ceiling mounting and hard-wired installation, which saves valuable floor space in a packed warehouse, garage or storage area.
  • DURABLE STEEL CONSTRUCTION: The body of the commercial heater is crafted from heavy gauge steel, which stands up well to the temperature fluctuations in areas that are poorly insulated.


The Optimus Garage/Shop Ceiling or Wall Utility Heater features Quartz heating elements to provide a comfortable, long-lasting heat. You can mount this heater on the ceiling or wall, and features additional light from halogen bulbs. This Optimus heater features a pull cord that is easily accessible for turning the unit on and off. This heater also comes with overheat protection for safety and to preserve the life of the unit. It is capable of emitting ​600/900/1500 watts of heat, making it another standout on our list for the best garage heaters of 2018.


  • Installation is simple
  • Offers additional Halogen-based light source


  • Some users said the pull cord frays easily
  • Did not work well for some users

TPI Corporation Fan Forced Radiant Heater

TPI Corporation 198TMC Fan Forced Portable Heater – Radiant, 1500/900/600W, 120V, Winter Heating Equipment. Heating Devices
  • TPI Fan Forced Heater: durable fan heater for cold weather can be used as an air circulator, heater or drier. The fan forced heater is ideal for area heating, radiant heat distribution, spot heating or freeze protection.
  • Portable Heater: the electric heating device comes with adjustable settings to get the desired warmth and comfort. The easy-to-carry and light weight heating equipment is travel friendly and user friendly. This Winter care heating accessory is for commercial and industrial use


The TPI Corporation Fan Forced Radiant Heater is a 1500/900/600W garage heater that uses fans to provide better heat circulation and distribution. This portable heater is compact, so it can be transported easily. It also features adjustable settings to fit your desired heat and comfort level. This lightweight heater is perfect for garages, as well as other small spaces such as laundry rooms and warehouses.

Also, this TPI heater is built to be durable, so it can withstand shocks, corrosions and scratches. Its dual-safety system ensures that the heater will automatically shut off if tipped over. Weighing at less than a pound, this small heater is still powerful enough to be one of the best garage heaters to buy this winter season.


  • Compact and lightweight
  • Highly portable
  • Fast and efficient
  • Auto shut-off feature adds safety


  • Some users said it stopped working after short use
  • Electric components reportedly short-circuit easily

Dyna-Glo Garage Heater

Dyna-Glo GBF30DTDG-2 30,000 BTU Blue Flame Vent Free Garage Heater
  • Dual fuel technology allows the unit to be operated with Liquid Propane or Natural Gas
  • Blue Flame Technology works by convecting heat to warm the air the same way as a central heating system


The Dyna-Glo Garage Heater is a 30,000 BTU garage heater is a vent-free garage heater that uses dual-fuel technology — it operates on propane or natural gas — that makes it energy-efficient. Unlike other traditional heaters on this list of the best garage heaters, this product relies on "Blue Flame Technology" to emit convecting heat (much like a central heating unit) for fast, but long-lasting warmth.

In addition, this garage heater also features a thermostat control knob so you can make easy temperature adjustments. If the heater is tipped over accidentally, its innovative shut-off feature works to stop heat emission and prevent fires. This heater is versatile in that it can be used as a freestanding ground heater or it can be wall-mounted to save floor space.


  • Blue light heat
  • Works on natural gas or propane
  • Thermostat gives owner temperature control


  • Safety auto shut-off
  • Poor customer support
  • Did not work for some users

NewAir G56 Garage Heater

NewAir G56 5600 Watt Garage Heater - Get Fast Heat for 560 Sq. Ft.
  • Quickly heats up 800 square feet; Temperature Range: 45-95
  • Certified for electrical safety with overheat protection


The NewAir G56 Garage Heater is a fast, powerful garage heater capable of heating up to 560 square feet based on 1,9108 BTU. It is built of sturdy steel materials and features a compact design for added portability. With 5600 watts of power, this heater also features a thermostat for manual temperature adjustments and maintenance. For safety protection, this heater comes equipped with a steel grille to guard against injuries. If the heater overheats, its thermal cut-off system automatically shuts it down.


  • Compact size
  • Powerful heat
  • Safety features


  • Poor warranty
  • Not warm enough for some users
  • Fan stopped working after short use

Dimplex DGWH4031 Garage/Workshop Heater

DIMPLEX DGWH4031G Garage and Shop Large 4000 Watt Forced Air, Industrial, Space Heater in, Gray/Black Finish
  • Garage/workshop fan-forced heater with 4000-watt stainless-steel element
  • 13,640 BTUs; automatic temperature control from 45 to 77 degrees F


The Dimplex DGWH4031 Garage/Workshop Heater is a 4000-watt, stainless-steel heater capable of emitting 13,640 BTUs. It features automatic temperature control functionality from 45 to 77 degrees Fahrenheit. You can mount this powerful, yet compact, heater on either the wall or ceiling, freeing up floor space.

Also, it features a swivel emitter so you can direct the heat where you want it to go. This fan also has a safety shut-off capability to prevent injuries and overheating. At an affordable price, this efficient product definitely earned its place on our list of the best garage heaters of 2018.


  • Easy to install
  • Works great
  • Can save floor space with wall or ceiling mount 


  • Not powerful enough for some users
  • Some reported it had difficulty maintaining heat
  • Stopped working after short use

Dr. Infrared Heater Garage/Shop Heater

Dr. Infrared Heater DR-988A Garage Shop 208/240V, 4800/5600W Heater with 6-30R Plug
  • Auto Overheat Cut-Off Protection
  • Temperature Range: 45-95 degrees F


The Dr. Infrared Heater Garage/Shop Heater is a 5600-watt portable heater featuring an easy-to-carry handle. This powerful garage heater can emit 19,110/14,335 BTUs to deliver consistent heat and long-lasting warmth. In addition, it features a built-in thermostat that allows you to control the temperature settings to whatever you prefer.

Choose between 45 and 95 degrees Fahrenheit. Like other heaters on this list of the best garage heaters, this product comes equipped with a fan for even distribution of continuous warmth. Finally, this heater has top-of-the-line safety features, including metal grills to prevent injuries and a limiter that prevents overheating.


  • Compact size
  • Powerful heat
  • Adjustable thermostat


  • Some users complained that it is noisy
  • Better for industrial use

Fahrenheat ​FUH54 Electric Heater

Fahrenheat FUH Electric Heater for Garage, Factory, Basement, Warehouse, and Outdoor Use, Beige
  • COMPATIBILITY: Whether you need 208 or 240 volts, this heater is fully compatible with your electrical system.
  • HEAVY DUTY HEATER: Warm-up just about any open space with this heater that provides long-term comfort solutions with its built-in single pole thermostat that adjusts from 45 to 135 degrees Fahrenheit.


The ​Fahrenheat ​FUH54 Electric Heater is a 5000-watt heater featuring fast, efficient heating capabilities of up to 17,065 BTU per hour. This powerful compact heater can be mounted on the ceiling to save space. It emits heat from the start, so there are never any cold blasts of air. The continuous fan ensures this heater is not at risk for overheating, while its built-in thermostat allows for temperature adjustments to fit your comfort level. This electrical heater definitely deserves a spot on our list of the best garage heaters of 2018.


  • Heats up fast
  • Can be mounted on ceiling
  • Built-in thermostat


  • Did not work for some users
  • Not warm enough for some users
  • Expensive compared to alternatives

NewAir G73 Hardwired Electric Garage Heater

NewAir G73 Hardwired Electric Garage Heater, Heats up to 500 square feet
  • [Rugged Exterior, Built to Last] The NewAir G73 hard-shell exterior is made from heavy-duty stainless steel. Not only is it durable, but it’s built to last, especially in tough climates and work conditions. It also comes with a mounting bracket for you to place it on the wall or ceiling of your workspace. This way you can stay toasty and safe with a heater hidden from busy work areas.
  • [A Powerful Fan to Keep You Warm While You Work] Get quick heat from a fan powerful enough to spread warm air evenly throughout a 500 square foot radius. If you have a two-car garage, large workspace or shed, you’ll remain warm while you do your work, especially in the dead of winter.


The NewAir G73 Hardwired Heater is another one of our spotlighted best garage heaters. This 240-volt, compact heater features a built-in thermostat and an automatic shut-off feature to protect against overheating. Made from stainless-steel materials, this heater has the longevity you need in a heater. It is capable of 17,000 BTUs of heating ability and can warm up to 500 square feet of space. It is also versatile in that it can be mounted on the wall to save space.


  • Easy to install
  • Built-in thermostat
  • Well insulated
  • Can save space with wall mount


  • Not powerful enough for some users
  • Stopped working after short use
  • May be too noisy for some people
  • Expensive compared to some


The Modine High Efficiency Gas Fired Unit Heater can emit 150,000 BTU, making it the most powerful heater on our list of the best garage heaters. They built it with durable, stainless-steel material. It features a grill guard for safety and an automatic shut-off feature to prevent overheating. This garage heater can be mounted on the ceiling, though we and the manufacturer recommend professional installation.


  • Easy to install
  • Great for commercial heating
  • Safety features
  • Can be mounted on ceiling to save space
  • Excellent 10-year warranty


  • Super expensive (by far the highest on our list)
  • Better for larger spaces
  • Can be noisy during operation
  • May require professional installation

​The Verdict

All 10 of the garage heaters we highlighted will offer you value in return for your investment.

Overall, though, we'd like to present to you our verdict for the best garage heater of this season: The Dr. Infrared Heater Garage/Shop Heater.  This powerful heater is compact, so portable and it can be stored in small tight spaces. With 5600 watts of power, this heater will keep your garage warm throughout the cold season.

​If you’re looking for a garage heater for this winter season, then look no further than this garage heater or the products on this list of our top 10 recommendations.

  • Updated September 13, 2019
  • Heater
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