[Pushit2.0]

I should look up what mine takes to run and maintain some heat 3 or 4 days a week. I have a 35k BTU heater and before I insulated the roof of the garage the attic would be about 80deg and the floor about 40deg. Now with 80% of the walls insulated and the attic insulated 100% with only 3" of insulation and a box fan to move air the garage will maintain a balmy 65deg no problem. With a outside air temp of 10 or above it only takes about 1 hour for the temp rise to workable levels, when its below 0 it can take up to 2 hours and the heater runs A LOT more then when its a little warmer out side.

~John