How to Heat a Garage Without Electricity – Top 3 Ways

Gear4Wheels may collect a share of sales or other compensation from the links on this page. This comes at no additional cost to you, and all the prices and availability are accurate at the time of publishing.

How to heat a garage without electricity

Don’t want to add more electricity consumption to your bills? No problem.

You can warm your garage with a heater that doesn’t need electricity.

You can continue working on your projects during winter without the high utility costs. 

So, let's have a look at the different types of garage heater you could install to get yours warm with NO electric supply needed!

Garage heaters:


Natural gas:


Things to know:

Square meters:

The size of your garage affects the heater you must get. Look at the heater’s thermal output which is measured in BTU/hr. The higher the BTUs the greater the heating coverage.

Propane heaters:

The average BTU rating for propane heaters are:

  • check
    5,000 BTU heats up a small garage
  • check
    10,000 BTU heats up a medium-size garage
  • check
    17,000-18,000 BTU is ideal for large garages

Natural gas heaters:

Determining which heater to buy depends on two factors:

  • The size and weather

  • check
    Very cold areas: 1kW output for every 8.5m2
  • check
    Cool to mild zones: 1kW for every 13-16m2
  • How the garage is built: Higher ceilings require more power to effectively heat up the garage 

Portable heaters:

Portable heaters generally have the same coverage as the type they replicate.


Follow these safety tips with regards to propane and natural gas heaters.

  • If you suspect a leak, switch off the gas supply at the source when it’s safe to do so. Don’t use lighters, cellphones or anything else that can produce a spark
  • For portable heaters, don’t place them in high-traffic areas. Keep them away from animals and children
  • Don’t place the heater near items that are easily flammable when they get hot
  • arrow-right
    Purchase a heater that is suited for indoor purposes
  • arrow-right
    Switch off the heater as soon as you're done using it
  • arrow-right
    These heaters make use of open flames. Keep flammable liquids or sprays away from them
  • arrow-right
    Don’t leave your heater unattended
  • arrow-right
    Don’t move the heater while it’s on. Switch it off and wait for it to cool down. Then it’s safe to move it

Look for these safety features found on most heaters: 

  • Tip over switch: This switch automatically turns the heater off when it’s tipped over or if there is an operational failure
  • Thermostats: A built in thermostat will switch the heater off if it identifies the oxygen is below a certain level
  • Cool-touch body: If you accidentally touch the heater it won't burn you. 


Choose a heater based on your preferences. Make a final decision based on the pros and cons of each non-electrical type.


Propane heater:



Natural gas heaters:



Portable heater:




Non electrical garage heaters are clearly beneficial to have. Whether they’re mounted or portable, they’re effective in heating your garage. You can continuously work in your garage throughout the winter without raising your electrical bill. Install them so you can enjoy comfortable winter months from now on.

Recommended reading: The cheapest way to heat a garage

Rate this post
Article Name
How to Heat a Garage Without Electricity : Top 3 Ways
Publisher Name