Garage heat

67Dart273 said
^^This^^ Many "garage based" combustible vapors tend to be heavier than air, hug the floor. I don't remember the codes anymore, but electrics, switches, any spark/ ignition source is supposed to be "off the floor" of a residential garage. I could not remember if it was 18 or 24, or may have changed

Fuel Gas Code calls for 18". There are exceptions to this but they are on a case by case basis. The twist is that each municipality with an "Authority Having Jurisdiction" can modify that to anything. You'd have to check your local codes.