On Dec 20, 4:52�pm, "RBM" rbm2(remove wrote:
Don't know if there is a formula for this and I'm not looking for a typical
heat loss calculation. The scenario is this: Garage is 24' X 24' with 12'
ceiling. There is sheetrock and insulation in the ceiling and three walls.
The garage has two standard overhead doors. Temperature is aprox 32 degrees.
I want to raise the temperature to 60 degrees in about one hour. How many
BTU's do I need?

Thanks for any help, Roy

probably cant be done,,,,,,,,,,,,

how big is the amp capacity of the service?

you will probably be better off with a oil or propane heater