will a 10000 btu propane heater heat a 2 car garage and how much propane will it use?

Question

the garage will be well insulated. The walls will be insulated with r13 wall insulation and the ceiling will be insulated with 1 inch thick styrofoam

Answer 1

Yes...if your garage is well insulated. Depending on the style of the heater itself, propane usage will vary. If your garage is not well insulated, I would suggest a 20,000 BTU heater. Most packages usually say about how much propane the product will use..


According to my hubby, if your going to insulate the garage like that, you should be fine with a 10,000 BTU heater.

Answer 2

10000 Btu Propane Heater

Answer 3

This really depends on where you live, how warm you want to get it,how efficient the heater is, how well insulated and air tight the garage is.

Propane has about 91,000 btus per gallon, or 21,600 btus per pound. The efficiency of a typical heater is about 70%, but a 10,000 btu unit may be lower, like 65%. If the heater has an "input" rating of 10,000 btus, that means you get about 7000btus of actual heat out of it. So you can run it full blast for about 3 hours per pound of propane.
But that doesn't help much...really...because the other factors are unknown to me!
If it was insulated and as air tight as a house, and the outside temp was 10F, it would probably heat it to the 60's ok. Most garages are not insulated at all, have big leaky doors, and a cold concrete floor.
I suggest using a radiant type heater, so you can point it where to want the heat and it won't waste propane trying to heat all the air in the garage. I've used heatlamps directed right where my hands are, while standing on a sheet of foam insulation and done auto mech work at -20F.
And lived to type about it.

Answer 4

OK, some fact that would be needed for an accurate answer:
1) How warm do you want it?
2) What is the outside temp.?
3) Is the garage insulated?
Now a general answer....barely. It will probably keep it above freezing, but is certainly not enough to keep it at 70 degrees in an uninsulated garage if it is below freezing outside. If you just want to keep it above freezing, then a 20lb cylinder could last you a couple of weeks. But, if you run it full bore, it will probably last 24-36 hours is my guess.

Answer 5

it does depend on how tight the garage is, 10000 will take the edge off but is a little small to get it to 70 degrees quickly. If it's zero outside it will take a few hours to heat it up