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Asked by: Leovigildo Abadesso
home and garden indoor environmental qualityWhat size heater do I need for my 2 car garage?
Installing the heater
How many Btu you need depends on variables such as the garage size, your climate zone and the temperature you want to work in. A basic rule of thumb for forced-air heaters is 45,000 Btu to heat a two- to 2-1/2 car garage, and a 60,000 Btu garage heater for a three-car garage.
Simply so, how many watts does it take to heat a 2 car garage?
According to the “10-watt rule,” here are some illustrative examples of garage heater sizing: Single-car garages (0-450 sq ft) require a 2000-3000 W unit (or 6,800-9,000 BTUs/hr) Two-car garages (450-700 sq ft) require a 3600-7000 W unit (electric heaters) or 12,000-24,000 BTUs/hr (for the propane ones)
- Install Better Insulation: The Cheapest Way to Heat Your Garage.
- Hook Up an Electric Space Heater: The Simplest Way to Heat a Garage.
- Fire Up a Combustion Space Heater:
- Install a Ductless Mini-Split System:
- Add Radiant Heating:
Also to know, how do I calculate what size heater I need?
How to Calculate Heater Size
- Measure the length, width and height of each room you want to heat.
- Add the areas of all rooms to be heated to get the total cubic feet.
- Estimate your desired temperature increase.
- Calculate the BTUs you need.
- Recognize situations that may increase your heater size needs.
Size and Ceiling Height
| Area To Be Cooled (square feet) | Capacity Needed (BTUs per hour) |
|---|---|
| 450 to 550 | 12,000 |
| 550 to 700 | 14,000 |
| 700 to 1,000 | 18,000 |
| 1,000 to 1,200 | 21,000 |