5 Best Garage Heaters

Are you in need of a perfect garage heater that will serve you well? If yes, read through this article on the 5 best garage heaters with specs and info, and be informed.

This PowerVersity buying guide selects the 5 best garage heaters you can depend on. However, I will start my list with the 5th on the top of the 5 best garage heaters, and then we will move in descending order till I get to my best.

To discover the best on my list, stay around till the end of this article. Then, be assured that you will find essential details that will help you purchase the best garage heater for your needs, whether personal or professional.

To start with, let us quickly consider the meaning, types, and benefits of a garage heater. Then, I will also discuss the essential things to look out for before buying a garage heater.

Garage Heater; An Overview

Garage Heater; An Overview

A garage heater is a natural or propane gas unit that provides warmth for car garages of any size during the winter months.

It is a heater that is used to combat cold garages and workshops during the winter months. Also, there are separated combustion models that provide heating for hard-to-heat applications.

Even so, it has a heating capacity that provides warmth for a one-car garage and up to over four cars garage application. Furthermore, it usually comes in a separated combustion model that provides heating for hard-to-heat applications.

More so, it is available in natural or propane gas. However, in the subsequent paragraph, we will consider some garage heater type classifications.

Garage Heater Classification;

Garage Heater Classification;

Although there is no basic rule for classification, however, a garage heater can be classified based on the following types:

  • Heating Technology
  • Mounting Option, and
  • Power Source.

However, I will be stating the types of garage heaters based on these classifications in this article of the “5 best garage heater”.

Heating Technology Types;

There are three types of heaters in this category, and they are:

Radiant Garage Heater

Radiant heaters are also known as infrared heaters. They radiate infrared light that heats the objects it ‘shines on.’

Also, they produce different heating levels around your garage and leave the air as cold as it was before turning the heater on.

However, their disadvantage is that they do not heat the air and directly heat anything that is not a direct line of sight to the heater’s radiator. Though, objects around the radiator’s shadows may receive some reflected heat from other objects or surfaces.

More so, the infrared light makes the object twice as far away from the radiator as other objects that will only receive one-quarter the amount of radiated energy.

In addition, the radiant garage heater will be more effective than the other options they rely on for circulating air to distribute the heat if the garage front door is often opened.

Convection Garage Heater

Unlike the radiant heater, the convection garage heater heats the air directly and produces a more evenly distributed heating effect throughout the garage.

Theoretically, they use a bit less energy than the forced-air heaters. More so, the air becomes less dense than the surrounding cooler air and floats up toward the ceiling when heated.

Also, they produce less dramatic temperature differences around the garage than those caused by radiators. However, it produces a circulating current of air and is continually driven by temperature differences.

Forced-Air Heaters

These type of heaters blows the heated air through a fan. Also, they heat air directly and blow it around the garage instead of waiting for it to be gently circulated.

More so, they produce more heating effects and tend to work better in more oversized garages with two or more parking spaces by forcing the heated air to move around the garage.

Although, they use slightly more energy than the other types because of the additional work of forcing the heated air to move.

However, you do not have to drag them hard like others for the whole garage to be comfortable because of their ability to distribute the heated air.

Power Source Types;

In this category of garage heater types, there are two types, which are:


You have nothing to worry about while using this type of garage heater. This is because it is the simplest to install and easy to maintain and operate.

Also, it is recommendable for almost everyone as it is the most environmentally responsible option. However, this depends on your electricity supply.

More so, it is reliable for people connected to the electrical grid. And, they do not cause annoying and dangerous fumes.

Fossil Fuels / Hydrocarbons

Different safety requirements, the complexity of installation, and regulations are essential in this power source.

There are two types of fuel heaters, and they include:

Propane And Kerosene: They are used by portable heaters and are less expensive to buy.

These types of fuel should be avoided if you are sensitive to petrochemical fumes or have a medical respiratory condition.

The reason for the avoidance is because some heaters using them will produce irritating fumes even when working correctly.

Most importantly, do not use fossil-fueled appliances in an enclosed space without adequate ventilation.

Above all, the advantage of these heaters is that they are less expensive and very portable.

Natural Gas: It is the most complicated garage heater. Therefore, if you do not hire a contractor to do the work, you will have local codes to adhere to or some inspections to be done.

However, the rules guiding this installation vary from place to place, but in your interest, contact your local authorities to find out the local requirements before buying a gas-powered garage heater.

The natural gas garage heaters are the most expensive type for professional installation but the cheapest to operate if you already have gas in your home.

Gas-powered appliances are subjected to regulations because they can cause the death of anyone if sub-standard work is done. Even more, carbon monoxide poisoning is one of the significant risks.

Mounting Options

These types of garage heaters are about the method of positioning. And these methods are of three types which are:

  • Portable / Stand
  • Wall Mounted
  • Ceiling.

On this note, we have come to the end of types of garage heaters by classification. However, we will proceed to the factors to consider before picking the top 5 garage heaters.

Garage Heater Buying Guide;

Garage Heater Buying Guide;

This section of the article will discuss the factors you should consider when buying a garage heater.

Choose the correct BTU (British Thermal Unit)

BTU is the energy used to describe the rate at which the temperature can be raised in a specific space. For example, it can be determined by calculating the size and height of your garage ceiling.

However, a new generously sized workshop or a 3-car garage will need 50 000 BTUs for operation.

Noise Level

To avoid buying a heater with annoying sounds after installation, check out the detailed specs of your new garage heater before buying it.

This consideration is to help you get a more comfortable environment without any disturbance of your heater’s sound.

However, if your garage is noisy, you may not need to consider this factor while buying.

Installation Process

It is best to use a portable heater to avoid complicated installation processes. Also, you can buy a portable heater if there will need to bring it outside your home or carry it around.

However, if you plan to invest a lot of time in your garage, you will need to buy a hardwired heater into 220V, 110V, or 240V.

With this, you will have an assurance of a well-functioning heater without the risk of ruining a fuse. Although, it requires the help of a professional electrician for installation.

Fuel Types

As earlier explained, a garage heater has two main fuel sources: natural gas and electricity.

However, your garage can be effectively heated with any of the two, having different benefits. The gas heater is recommendable for small and large spaces up to 4,500 feet.

Even so, the gas heater can be less costly to maintain and operate.

On the other hand, the electric heaters are not so effective in larger spaces and are best for spaces less than 500 feet and below.

This is, however, because they do not use fossil fuels. Consequently, they can easily be relocated and even have high-efficiency ratings.

To determine the best fuel type for your need, you may need to consult an expert.

Garage Size

This involves assessing the heat range of your garage knowing the number of square feet needed to be heated in your garage.

Also, this information should be labeled on your heater, but you may need an installation technician to help in the calculation if it is not.

However, installing an ineffective garage heater is more like a wasted effort and money. Hence, it is important to consider this factor before buying your heater.

Environment Of Your Garage

It would help if you considered the environment of your garage, where you intend to place the heater. Sometimes, the insulation in your walls and window or the doors in your garage may not be adequately sealed.

Thereupon, this will affect the capability of your new garage heater as every garage differs. Hence, you should buy a garage heater with powerful BTUs that the supposed necessary.


This is always important when considering a new garage heater. Adequate ventilation is needed for a gas-burning heater for a garage set up to run on natural gas.

Also, evaluate what is in your garage and who uses it. Finally, consider the accessibility of children and pets while choosing a heater.

If you work in a dusty place, then an electric garage heater will be good for you as it requires minimal maintenance, unlike the gas heater that needs deeper cleaning to air vents, burner, and motor to remove dust and debris that can cause fire hazards.

Additionally, a ceiling-mounted heater makes the burner out of reach and provides safety to everyone.

Other factors to consider are the features of the garage heater, which are:

  • Mounting brackets.
  • Adjustable thermostat
  • Fans
  • Heating Capabilities
  • Portability, etc.

I will proceed to present the specs and info of each of my 5 best garage heaters in a comparison table before giving a detailed explanation.

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Toplists Of 5 Best Garage Heater, Comparison, And Spec

Toplists Of 5 Best Garage Heater, Comparison, And Spec
ProductDimensionWeightHeating MethodWattageVoltage
Outdoor Heater, Space Heater for Garage and Greenhouse with thermostat11.38 x 11.34 x 7.76 inches5.81 poundsConvection, Forced Air1500W120V 
AgiiMan Outdoor Patio Heater – Portable Electric Garage Heater10.28 x 9.06 x 7.6 inches3.8 poundsForced Air, Convection1500W120V
Dr Infrared Heater DR-238 Carbon Infrared Outdoor Heater35 x 8 x 4 inches8 poundsRadiant900W, 1200W, 1500W.120V
Dr. Heater DR218-1500W Greenhouse Garage Workshop Infrared Heater10 x 10 x 15 inches12.8 poundsRadiant1500W120V
DIMPLEX DGWH4031G Garage and Shop Large 4000 Watt Forced Air, Industrial, Space Heater7.3 x 10.2 x 14 inches12.1 poundsForced Air 4,000W240V

Read further to know the 5 best garage heaters, including their pros and cons.

Outdoor Heater, Space Heater for Garage and Greenhouse with thermostat

MODEGOL Portable Patio Outdoor Heater

5th on my list of 5 best garage heaters is “Outdoor Heater, Space Heater for Garage and Greenhouse with thermostat”

It is a portable electric heater with a handle designed for easy carriage and mobility. Also, it is suitable for small areas and very light to be carried about.

More so, it is built for long wires and larger dimensions than others. Furthermore, it has 89 inches long cord and floor MATS.

Additionally, it uses PTC heating elements that heat up quickly and produce a lot of heat. It has two modes, fan mode for 25W and heating mode for 1500W, which brings you a cool breeze in summer and warm you up in winter.

However, it has an adjustable knob used to turn the device into any mode of your choice. Also, it has a temperature control knob.

Furthermore, it has an automatic safety shut-off technology that gives you more peace of mind when in use. However, the overheat protection system will shut the heater off when it gets too hot.

Lastly, it reduces overall heating costs and can be used as supplemental heat to the main heating system. Also, it has four non-slip pads, cannot easily fall, and is perfect for places with children and pets.


  • It is a portable electric heater.
  • Also, it has an upgraded design and a fast testing feature.
  • Even so, it is energy-efficient.
  • Additionally, it is a safe patio heater.
  • Finally, it is a powerful outdoor patio heater.


Product warranty is not specified.

AgiiMan Outdoor Patio Heater – Portable Electric Garage Heater

AgiiMan Outdoor Patio Heater - Portable Electric Garage Heater
Image: Amazon

Coming 4th on my list of the best garage heater is the “AgiiMan Outdoor Patio Heater – Portable Electric Garage Heater.”

It has a portable 120V patio heater design with long wires and larger dimensions. Also, it can help reduce overall heating costs.

Even so, it is used as supplemental heat to the main heating system. More so, it has 89 inches long cord and floor MATS.

In addition, it is an electric outdoor heater that adopts innovative PTC technology and is much safer than others.

However, it has an adjustable temperature of 1500W high heat and a fan blowing cool air. Then turn the thermostat knob on the left toward the + sign.

Furthermore, this energy-efficient heater helps you reduce your energy bills.

Finally, it is a safe space heater with an automatic overheat system that will shut the unit off when the part of the heater overheats.


  • It has a large upgraded size.
  • Even so, it has an adjustable temperature knob.
  • Additionally, it is energy-efficient.
  • Furthermore, it is a safe space heater.
  • Lastly, it is a patio heater for outdoor.


Product warranty is not specified.

Dr Infrared Heater DR-238 Carbon Infrared Outdoor Heater

Dr Infrared Heater DR-238 Carbon Infrared Outdoor Heater

Subsequently, we have the 3rd on my list of 5 best garage heaters like the “Dr Infrared Heater DR-238 Carbon Infrared Outdoor Heater.”

This heater is suitable for both indoor and outdoor use. Notably, it is perfect for home, backyard, garages, open-air restaurants, outdoor patio, or deck.

Also, it creates a comfortable environment for both your indoor activities and outdoor recreation. More so, it is a clean, instant, and odorless infrared heat with three power settings, 900W, 1200W, 1500W. 120V, 60Hz.

Furthermore, it has a high-level mirror aluminum reflector with 90% reflectivity and a unique design to fit the carbon lamp to bring strong heating efficiency. Even so, it has durable and weatherproof aluminum.

Finally, it is a standard 120V and remote-controlled. Even so, it includes wall and ceiling mounting brackets. Even so, it has IP55 approval.


  • It is an indoor and outdoor heater.
  • Also, it is wall and ceiling mounted.
  • More so, it is highly efficient.
  • Additionally, it disseminates clean and instant heat.
  • Finally, it uses a standard 120V and with remote control.


The manufacturer did not specify the product’s warranty.

Dr. Heater DR218-1500W Greenhouse Garage Workshop Infrared Heater

Dr. Heater DR218-1500W Greenhouse Garage Workshop Infrared Heater
Image From Amazon

2nd on my list of the 5 best garage heaters is the “Dr. Heater DR218-1500W Greenhouse Garage Workshop Infrared Heater.”

It is a 1500W electric garage heater that comes with only one set. Also, it requires low maintenance to keep it running.

Even so, it is IPX4 structured and protected against water splashing with a 150 square feet heating coverage.

More so, it is very lightweight, thereby making mobility very possible. In addition, it helps keep your garage warm and thrive in the best climate.

Furthermore, it has a 1-year product warranty with a radiant heating method.


  • It is lightweight.
  • Requires low operation maintenance.
  • Features an IPX4 structure to protect against water splashing.
  • 1-year warranty.
  • Finally, it has 1500W and comes with a single setting.


  • It is quite expensive.
  • Also, it can not heat a large garage.

DIMPLEX DGWH4031G Garage and Shop Large 4000 Watt Forced Air, Industrial, Space Heater

DIMPLEX DGWH4031G Garage and Shop Large 4000 Watt Forced Air, Industrial, Space Heater

The overall best on my list of 5 best garage heaters is the “DIMPLEX DGWH4031G Garage and Shop Large 4000 Watt Forced Air, Industrial, Space Heater.”

It is a durable 4000-watt garage heater with stainless steel heating element and a high-performance motor that delivers reliable comfort.

Also, it includes a six-foot-long cord with a NEMA plug for quick connection to a 240 volt (20 amp) receptacle. Even more, it contains automatic overheat protection to ensure safe operation.

In addition, it comes with heavy gauge steel that is treated with an epoxy powder-coated finish to provide longevity and corrosion resistance.

Furthermore, it includes a bracket that allows ceiling or wall-mounting, plus swivel and pivot to direct heat where it is most needed.

However, it has a thermostat control and fan delay that residual heat after the element shuts off.

Lastly, it has a 1-year limited warranty.


  • It is durable and powerful.
  • Also, it includes automatic overheat protection to ensure safe operation.
  • Even so, it has a heavy gauge steel design that provides longevity and corrosion resistance.
  • More so, it has a thermostat control and fan delay.
  • Additionally, it has a 1-year limited warranty.
  • Finally, it includes a bracket that allows ceiling or wall-mounting.


  • It is expensive.
  • Also, it can not heat a large garage effectively.

5 Best Garage Heater; Wrap Up

5 Best Garage Heater; Wrap Up

Above is my list of the 5 best garage heaters with their different spec and comparisons.

To wrap this article on the 5 best garage heaters up, I believe that you have been able to choose the best pick on my list, and you’ve decided on which to buy.

However, all products on my list have are worthy of selection. Hence, do not hesitate to use the “Buy Now On Amazon” button to make your order for the 5 best garage heaters.

I hope you found this Powerversity buying guide helpful?

If you found it helpful, please fill out the “Leave a Reply” form to make us know your thoughts.

You may want to read other articles like this:

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Agboola Mary Gbemisola
Agboola Mary Gbemisola is a Technical Writer for PowerVersity.com. She has a B.Sc in Mass Communication and Journalism. Mary loves Cooking, Playing games, and involving in educational talks. In PowerVersity.com, she writes product best picks, buying guides, and product comparisons.


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