Kungur wrote:How would this work?
Run the "dust collector" piping into the furnace/boiler in the location of the ash pan. Fabricate a "bin that the dust collector pipe would connect to and then suck the ash right out of the appliance.
Would this have any effect on the coal fire on the grate?
Not my install, but, I see it as like a *whole house vac system* w/ the cyclone mounted over top of a galvanized trash can and located outside in a safe convenient location. Some thought goes into how it will get disposed of from that location and how much quantity is allowed to accumulate before doing so.
Then when ash removal from the coal unit is required, just use a flex hose attachment to vacuum ashes through metal round duct to the outside trash can. Shop vac only provides the suction and doesn't receive any ashes or dust...shop vac's filter is maintenance free.
I wouldn't recommend any permanent connection to the ash pan area.