We have a Hutch rebel double door wood stove and we had to replace the pipe from stove through ceiling and attitude and through roof and we're not sure what to do. My bf, bless his heart, is trying to Frankenstein it by having black 8 in reducer coming out of the stove to 6 in black stove pipe then from the ceiling through attic having a increaser from 6 in black stove pipe connecting to a 8 in double wall stainless 36 in pipe. Someone please help us, he has no idea what hes doing and frankensteining this thing and I don't want our house to burn down. Someone point us in the right direction for safest and most cost efficient solution cuz were down to the wire and these electric heaters are not cutting it and draining our pockets