Garage Heater Installation – Ultimate Guide

Ultimate Guide on How to Install a Garage Heater

In today’s world, most people seek options to make their garage comfortable and more usable, and the garage heater is one of the trendiest options. In earlier times, people used to make furnaces in their garage to keep the atmosphere warm, but garage owners swiftly started moving towards the garage heaters after the trend of garage heaters.

A garage heater is an excellently working system that helps you regulate your garage’s temperature and make your presence comfortable. Also, Garage heater installation is pretty easy, and you can do the installation process on your own by following the below steps. 

You can generate the heat by consumption of fuel or by electricity. In the present time, there is a trendy heat-producing system out there that is known as garage heaters. Furnaces might be useful in the past time, but they also have some disadvantages: they produce a lot of smoke, increasing air pollution. Also, they make smoky black dust, continuously inhalation of that stuff may lead to disease.

You are here to find the installation process and installation tips for garage heaters. However, before moving towards it, we need to know about the type of garage heaters.

Nowadays, there is a wide variety of garage heaters, and it differs by their shapes, size, features, operating system, and the mounting process. There are two types of garage heaters: gasoline garage heater and electric garage heater.

Gasoline garage heater contains a fuel tank that is connected by a pipeline to the heater. On the other hand, an electric garage heater can be operated by mere utilization of electric current.

Gasoline Garage Heater

A gasoline garage heater is a heating system where the spark plug light up the fuel to produce heat and energy. A gasoline garage system is an affordable option among other garage heating options. Still, its installation process is quite a trouble-giving and a little costly, but only if you install after their construction.

A gasoline garage heater is a small, mounting gasoline-fueled garage heating device. It contains a fuel tank, a piping system for heat transfer, a spark plug, a heating element that transform fuel into heat and energy, taps and regulators to control power and heat.

DIMPLEX DGWH4031G Garage and Shop Large 4000 Watt Forced Air, Industrial, Space Heater in, 11 x 7.25 x 9 inches, Gray/Black Finish
  • POWERFUL: Durable 4,000 watt, stainless steel heating element and a high-performance motor deliver reliable comfort. Includes a six foot long cord with NEMA plug for quick connection to a 240 volt (20 amp) receptacle.
  • DURABLE: Our electric heater is designed with heavy gauge steel treated with epoxy powder-coated finish to provide longevity and corrosion resistance
  • ADJUSTABLE: Includes bracket that allows ceiling or wall-mounting, plus swivel and pivot to direct heat where it is most needed
  • SAFE: This heater includes an automatic overheat protection to ensure safe operation
  • CONTROL: Made with thermostat control and fan delay to use residual heat after the element shuts off

A gasoline garage heater is operated on the following process; the heater is connected to a fuel tank by pipes, first fuel brought to the heater. A fan blows air towards the combustion chamber where the spark plug enlights the power, and the heating element transforms fuel into heat and energy.

Things That You Need for a Gasoline Garage Heater Installation

Drill and screws

Drill and screws are the first most important and essential equipment that an installation of a gasoline garage heater must take. When you want to install a gasoline garage heater in your garage, you have to drill holes to mount your heater correctly, and then you need to fix up the heater correctly with screws.

VIGRUE M2-M3-M4-1080PCS Stainless Steel Screws and Nuts, 1080 Pcs Hex Socket Head Cap, Silver
  • √ High Quality 304 Stainless Steel Hex Socket Head Cap Screws bolts Nuts Flat Washers Kit. We also provide three free relevant wrenchs in our sets.
  • √ Many various sizes of M2 M3 M4 screws with matching nuts and flat washers meet different people’s demands, the necessity of your home life.Package Quantity: 1080PCS.All of screws nuts and washers will be packed in a sturdy convenient case, can be use for a storage box,is organized to you.
  • √ Nuts and flat washers expand the contact area and reduce the pressure in order to protect the screws and parts.
  • √Environment Friendly not only is it made from high-quality elements this kit also promotes environmental protection and is guaranteed to be mercury-free and toxic-free generally making it poison-free.
  • √This kit can be widely used in all kinds of precision machinery, classified instruments, instruments, electronic products, household appliances, communication products, locks, lamps, lights, toys, etc.
WORX Switchdriver 2-in-1 Cordless Drill and Driver with Rotating Dual Chucks and 2-Speed Motor with Precise Electronic Torque Control – WX176L
  • [TWO BITS AT ONCE] Easily and instantly alternate between two bits on the innovative Switchdriver head. Drill a pilot hole then the screw, all without switching tools or bits
  • [STRIP-PROOF] Automatic torque control stops you from stripping screws. It also prevents you from damaging the surface of the project
  • [DO IT ALL WITH THE SAME BATTERY] Worx Power Share is compatible with all Worx 20v and 40v tools, outdoor power and lifestyle products
  • [2 SPEEDS] Variable gear train lets you go slow for backing out or drilling into tricky materials, or fast for driving your screws home
  • [JUST PRESS THE BUTTON] Switch between the alternating ¼” chucks just by pressing a button. The heads rotate 180-degrees and you get a whole new tool without having to get down from the ladder

Mounting Cables

Some garage heaters are installed by drilling and screwing, but some are heavy, so they need mounting cable to fix powerfully and correctly. Using mounting threads for installing your garage heater adds more strength and security to your heater, and it helps the place of installation hold the heater tightly.

HEATIT JHSF 80-feet 120V Self Regulating Pre-assembled Pipe Heating Cable
  • JHSF doesn't work unless the ambient temperature is below 37F/3 degree C. Please test the cable in a cold environment.
  • Suitable for use on plastic and metal water pipes.( including inlet pipe,drain pipe, sewer , palm tree frost protection etc). Self regulating heating cable output will adjust automatically based on the ambient temperature at each point along the cable.
  • Pre-assembled, easy to install. Including grounded plug with light, built in thermostat(turn the cable 37F on 50F off) and instructions. 120 volt, 3 watts/ft at 50 degrees F. Protect pipes up to 2" in diameter. Can be used by straight, spiral and overlap.
  • ETL approved. 2 ft 18/3 cold lead with plug. The lowest installation temperature of this heating cable is -10 degree C. Tough XLPE as inner insulation and weather resistant PE (high-low temperature) as out jacket. Ingress Protection 65.
  • Testing the cable before the installation. Uncoil the cable, plug in the heating cable. Normally you can feel the slight warm on the heating cable in few minutes.

Mounting Frame or Grip

Most garage heaters install in walls and ceilings. If you install a garage heater after the construction, it might need a mounting frame or some grip to get mounted correctly.

NavePoint 9U Wall Mount IT Open Frame 19 Inch Rack with Swing Out Hinged Gate Black
  • Supports standard 19" rack mount equipment
  • 19.5"H x 20"W x 18"D
  • Rack Depth: 18"
  • 9U Rack Units
  • 55 pound weight capacity


Pipes are one of the essential parts of a gasoline garage heating system used for heat transfer. While installing a gasoline garage heater, you must use thick pipes, and also, you need to be careful and protect your pipes from cuts.

Heat Cable for Pipe Freeze Protection, 18 feet, with Built-in Thermostat and 16 Feet of High-Temp Installation Tape, Heavy-Duty, Self-Regulating, 120 volt
  • THIS CABLE WILL NOT TURN ON UNLESS IT IS IN A COLD ENVIRONMENT. We’ve received a couple bad reviews from people testing the cables in their living rooms. Please don’t be that guy.
  • TAPE INCLUDED: 16 feet of high-temperature glass cloth tape is included with this cable.
  • HEAVY DUTY: Integrated thermostat turns cable on at 37 degrees, off at 50 degrees, greatly reducing energy waste. Cable is 8mm wide and includes a 24” unheated cord (add to stated cable length). Cable has commercial-grade outer jacket for long life and carries a FOUR YEAR WARRANTY, which is double the warranty of similar cables on Amazon. Will not short or burn out if cable is overlapped.
  • USES: Use on the inside or outside of all types of water carrying pipe including copper, steel, PVC, ABS, PEX, concrete and more; can be exposed directly to water and is rated for soil contact.

These are the essential things that you need to install a gasoline garage heater correctly, and now we will tell you how to install a gasoline garage heater correctly.

How to Do a Gasoline Garage Heater Installation Perfectly

Take Measures

First and foremost, the only thing you need to do to install a gasoline garage heater is taking measurements of your gasoline heater and, according to its size, draw the structure of installation and mark the drilling points on the place of installation. It is one of the most critical parts of the installation process that must be done carefully.

Drill the Holes

Mounting by screws is the most common and easy way to install a gasoline garage heater, and also it is a durable option. For mounting by screws, you need to make mounting holes by using a drill. And it will be done after you take all the measures and mark the area of drilling holes.

Mount the Heater

After the drilling, the next thing you need to do is mount your gasoline garage heater. Put your heater at the mounting place and when you are done with the setting, then put the screws in mounting holes and tight them up. If you get some mounting problem like your heater doesn’t get fit at the installation place, you can use a mounting frame or grip to install it correctly.

Pipe installation

When you successfully mounted your heater then, the next step is the installation of the pipes. In this step, you need some wrench to fix the lines to connect the heater’s fuel tank. If you want a clean installation, I prefer to install the gasoline garage heater before constructing your garage.

Check all the connections.

Here is the last step in the gasoline garage heater’s installation process: check all the connections you made and make sure that there is no leakage point for due before you start it. When you begin your gasoline garage heater with leakage, it will consume less and waste more fuel, and that waste may cause an accident or may lead to danger.

Electric Garage Heater

When a garage heating system is operated by electricity, we call it an electric garage heater. An electric garage heater is the trendiest option to regulate the garage’s temperature. An electric heater is a heating system that has a heating rod that gets hot when an electric current passes through it, and then it produces heat and energy.

Electric heaters come with many variations, and their variety differs based on their mechanism and operating system, and its installation process depends on its tool.

Things That You Need for An Electric Garage Heater Installation

Circuit Board

An electric garage heater utilizes an electric current to generate heat and energy. A circuit board is the most crucial component that you should have to run an electric garage heater where you put your heater’s electricity plug. The main thing is that you have to make an electric connection to run your heater whether you make it by a circuit board or wirings.

Conductor Cables

While installing an electric garage heater, you need electricity wires or cables to make the electricity connection. If you don’t have a circuit board near the installation place, you can make a connection through these electricity cables.

Mounting Hardware

Electric garage heater does not trouble you much to get installed they do not have any supplement stuff to install, you can install them easily by screws and mounting cables. Some garage heaters bring mounting hardware with them, and if they don’t, then you should install your heater with both screws and mounting cables that add more strength to it.

Here we have mentioned the essential things that you need to install an electric garage heater, and now it’s time to move for the install process.

How to Do Electric Garage Heater Installation Perfectly

Mount your Heater

An electric garage heater’s installation process is relatively easy, but you must do your job carefully. To install the electric garage heater, the first thing you should do is drill the mounting holes after making the marks, and then you should go for hanging your electric garage heater, and in the last fix your heater by screwing and mounting cables.

Run Wiring

Wiring is a primary step of the installation process of an electric garage heater. Without proper clean wiring, you can run your heater for so long, and wiring must be done well and cleanly. When you run wiring, make sure that no joint can be touched by each other.

Shut off the Power Supply

Before connecting the wires, shut off the power supply to get rid of getting an electric shock. While making the wiring connection, make sure that you are doing your job with quite finishing, and this can only be done if the power supply is off.

Turn on the Power

When you are done with wiring and connections, then the last thing you need to do is check the installation result. Turn on the power and check your heater is working or not. After turning on the heater, wait for two minutes, and you’ll get the result.


Here we’ve described all about the garage heater installation process. If you find this article worthy, then kindly share your views with us.

Sandy Jensen
Sandy Jensen is the founder of OrganizeWithSandy and Works with Champalimaud Design where she curates and creates fresh ideas for designing and styling your life.

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