i have sprayed with a wood stove and heavy ventalation, ive sprayed a 37 using a propane furnace, and i recently painted a s-10 mini truck useing a salamander...just make it always have fuel,a and is cranked on high so it wont shut off and the puff of smoke doesnt come out, and if you gatta fill ed wipe your hands with a lil thinner and rock and roll again.