Freddy wrote:I suppose you won't know unless you try, but my gut says that the coal in the stove hopper won't be enough to stop the vacuum.... you'll be sucking up smoke & maybe even coal. And two: Unless you have some sort of cyclone baffle or something, I think you'll have a certain amount of coal making it to the trash can. If it does work, I think you'll be wearing out PVC pipe faster than you think.... I don't know....it just seems that moving rock through plastic pipe will erode the plastic. Maybe I'm all wet... Tryyyy it!
I shouldn’t suck up any coal into the central vac bucket because the airstream in the hopper will be a lot less than the air moving through the pvc and it should just drop into the hopper when it reaches that point. If I do suck up any smoke it will just exit the house at the exhaust on the central vac. Pvc wear is something I’m worried about but I could always replace the section leading to the coal bin and I think it should last for quite a while. I think that I’m going to set this all up with some kind of regular hose first to test this out. My thought is that if this works I could activate the vac motor by a sensor in the hopper and have it constantly topping the hopper off anytime it goes down 8 or 9 inches. Then I would have a lot of coal in the hopper already and less chance of pulling any air from the stove. If this works I’m thinking that this could also be done with a powerful shop vac that is mounted in a box or something outside the house. Same principal as the central vac, the dust etc would just move through the intake pvc and be vented outside the house through the shop vac exhaust. I’m basically using my hopper as the bucket for the shop vac. I know everyone on here likes the auger idea but this is a lot simpler and a lot less expensive.
stovepipemike wrote:No chance of any fine coal dust getting to the motor,right? Mike
no chance the central vac has a lifetime washable filter.
coalkirk wrote:I don't know about being able to suck the coal into the hopper but it would work well to handle the dust. I have a cover over my hopper which is auger fed. I have a shop vac hose connected to an opening in the cover and when the auger runs, the vacuum does also. Works great.
my thinking exactly, the dust will just exit the house into the outside air. The auger seems like to much work. I can run the pvc any way I want and can even use vacuum hose if I want. I know for a fact that the coal will move through the pvc because I can already hook my vacum hose into the vacum port next to the stove and suck all the coal I want into the bucket on the central vac and it travels through the vac's pvc which runs along way through the walls and cieling and drops in the bucket on the bottom of the system.