Hello, I have an 8" system running 30' through cob (including turns) exiting horizontally and then rising 5' outside. The stove has worked fairly well, it is still a new system so pretty cold still, my cob bench hasn't yet warmed up.
The stove was performing fine, but the moment the house (also cob) warmed up to the 70F area, my stove began reversing and dumping smoke into the house. I would like to put a taller chimney/riser on the outside, but am afraid it might cool the gases too much. Any ideas what is reversing my air flow?
Thanks everyone, got the vertical pipe up over my roof and it is burning spectacularly now. Not only did it fix the reversing problem, but it also increased my barrel temp. from 400 to 600. Thanks again. I'll post some photos some day.