The Cheapest Way to Heat a Garage

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cheapest way to heat a garage

A garage is your place of solace, right? It can be the perfect place to get away from it all. 

And this goes for men and women. Whether it’s the place you park your vehicles or the space you turned into your personal studio, it’s valuable floor space you use optimally.

But  garages aren't cozy. Winter months turn them into ice cold rooms that you dread to go into, unless you heat them properly. 

And no, you don’t have to pay a lot. I’m going to show you the best way to make use of your garage again, even in the midst of winter, by telling you the cheapest way to heat your garage. 

Keep the cold at bay:

It won’t help warming a room if the cold only sneaks back in. Make sure these sources of cold are dealt with before you start:

  • Water leaks
  • Cracks and holes in the roof or walls
  • Doors and windows 

Plan A: Forced air heaters

The best option to try is a gas-powered forced-air heater. We love this for many reasons:

  • Installation is affordable
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    Monthly costs are reasonable
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    It’s a safe heat source that doesn’t easily overheat
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    Rapid heat source
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    Best for areas you don’t use constantly
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    Some units are mobile

You will see that it takes a while to reheat the area if you opened a door, so always keep doors closed so you can conserve heat and energy.

You can install these units yourself if you want to save on labor costs. Here’s how you do it.


You’ll save on electricity and feel warmer if the garage is insulated. Since it’s not used as a living space some garages aren’t insulated upon building; this is to keep costs low. Check walls and ceiling areas and add insulation if necessary.

Add seals to garage doors and other entrances so no cold air will enter when the doors are closed. But always keep ventilation going. You don’t want CO2 building up in the room while you work.


Measure your garage:

The size of your heater will depend on how large your garage is:

  • On average a two-car garage requires 30,000-45,000 BTU
  • A three-car garage may require up to 60,000 BTU

Remember the vents:

This method requires you to install a vent; this is for health and safety reasons. Most units will have the pipes included and you can install it yourself in one of two ways:

  • Create a vent through a wall
  • Guide the pipes through the roof 

Simply use a tool which you can cut the holes in a neat manner. A smooth hole is easier to insulate later on.


Installation requires basic tools:

  • Screwdrivers
  • Wrenches
  • Drills

Remember you also need a gas line connected to the system and a power outlet to drive the blower.

The unit’s instructions will guide you regarding installation and connecting the pipes in the right places. What you’ll love is that you can place or install it anywhere. Because it makes the air circulate, it doesn’t require a specific position for optimum effect. Leave some space around the heater though, as it’s always wise not to let it stand against a wall or install it close to the ceiling.

Improve the effect:

There are more ways you can enhance the effect of your heating system, but it will add to your monthly utility costs. Electric radiant ceiling panels heat the air around them and serve as additional insulation.

Plan B: Infrared heater

Not every situation is the same, right? One reason you may not like the forced air heater is the noise.

But don’t despair. A low-intensity gas-powered infrared tube heater will be effective, but it is slightly more expensive than a forced-air unit. Keep these facts in mind, because they will determine your comfort and safety:

  • A tube heater warms objects before it heats up the air. Put it on a while before you want to use the garage so the whole area—not just the furniture—gets warm
  • Don’t let objects touch the heater. It’s best to keep a 4ft perimeter so you or objects don’t overheat
  • Rising air will be warmer than the air close to the ground
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    Install it at least 7ft above the floor for optimum heat and safety

Alternatively, an electric infrared heater can be used if venting and gas options don’t suit your preferences. But in this case your utility costs will be very high.


Are you ready for your DIY project? Your garage can become your new favorite spot overnight. You can get more done, whenever you feel like pursuing your hobby or working on your car. You don’t have to wait for summer anymore.

So, in this article you will find out yourself what will be the cheapest way to heat your garage according to your needs.

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The Cheapest Way to Heat a Garage [Heating Systems Explained]
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