I have searched repeatedly on the Orchid forums for reference to this
problem. No where did I see any reference to the safety of fans in
relation to the exhausting of gases (propane in my case) from the
Grainger Supply would not sell me a shaded pole vent fan (squirrel
cage) because I told them I would be exhausting small amounts of
propane when bleeding my hoses. The sparks from the electric motor
could cause problems (I guess he means they could ignite).
On this forum I have seen references to in line fans, muffin fans,
bathroom fans, Attic fans, stove venting fans and Jenn-Air fans. As I
understand in all of these, the motor is in contact with the exhaust
fumes. Is this is a serious problem?
The only fans I can find for exhausting flammable gases are very
expensive and much more fan than I need. At another studio which I
shared, I used a squirrel cage type fan mounted right next to my
soldering area for 10 years with no problems.
This fan is for a small studio in my basement. I will be storing the
Propane outside and copper plumbing it in with a turn off. Natural
gas is not possible in my situation. My furnace guy will set this up
for me, but he doesn’t know what type of fan to use for exhausting
gases and fumes.