wrote in message

My humble opinion is that management of the dust in a similar manner as
you would for health should be sufficient.

Bob


I use an open flame propane heater and it has never "caught fire" from the
dist but I've intentionally kicked up enough to see tiny glowing particles
when the fan blows them through the flame. Not much of a concern under
normal conditions.

Fumes though, can go whooooooosh real fast.
--
Ed
http://pages.cthome.net/edhome/