From the price of a propane heater versus electric and electricity I just run two milkhouse electric heaters in my 20x20 garage. Its insulated and it gets it up to 60 degrees from 32 in about two hours. I don't have to worry about fumes. I do shut them off when I am using the saw as I don't want to fill them with dust. Sealing up all the air leaks around the door really helped keep it warm.
Last edited by 4ontheFloor; 12/04/2007 7:18 AM.
