Originally Posted by TurboS10
The furnace on your heater there has an open flame with a tiny little combustion fan. If it resides in the shop in question it is no different than my propane heater....maybe worse. It has a fixed flame with little air circulation around the flame itself making it more of a bomb situation. This is because the air in the room is not very turbulent so the fumes can creep toward the open flame and become very concentrated until the combustion fan picks them up at which point they can be very strong. It is like the whole gas leak with pilot light situation. With a forced air setup the air is circulating rigorously through the combustion chamber so fumes would be more likely to burn off slowly before they were concentrated enough to explode.
Oh, and that electric heater element will create combustion as well.
I still think if you isolate the paint booth from the heater location and keep the exhaust fan running you are perfectly safe.
my answer to that is
Originally Posted by matts37chev
I kinda feel like all the heaters, if in the same room, should be shut off while spraying
or you may have the kind of flame job you didnt want
I have been in the gasoline /tanker transport industry as a driver or tanker mechanic most of my adult working life
I have had it beat into my brain in training classes
I am very aware of possible ignition sources and vapor type fuel pathways
so sometimes i can get a little weird about this stuff
so I am sorry if I get over excited