Wobbly, I'm not suggesting a dust explosion is imminent or even likely. None of us would ever stay in our reloading rooms while particulate concentrations ever approached that level. What i am suggesting is that conventional (cheap)resistance element space heaters can get hot to a point of incandescence. Infrared heaters have a quartz lamp that is similarly hot but hidden from view. In either case, a flake of powder floating around to that element could ignite. If you've ever touched a flame to a pile of smokeless powder, you know it just sort of fizzes and sparks. I would expect a little spit of sparks out the front of the heater if this ever happened but I still don't want it to happen. Fact is, if you were to hepa vac my reload room, I'm sure you would capture a fair amount of rogue powder. Having processed maybe 100 lbs of powder over the years, its inevitable that a few mg have escaped. There is a non zero chance that a few sparks out of the front of a heater might lead to a brief flash across the floor. Hopefully it stops there but we usually have solvents present, rags, etc. Best idea is to eliminate any ignition source, and I count space heaters as one.
Sent from my SM-T580 using Tapatalk