SpudFiles

I have no idea what the rating on the pipe is, as there is no lettering anywhere on the pipe. It would appear to be SCH40 or something similar, but the I.D. is nothing like 10" SCH40.

EDIT: Just checked the I.D. (with a tape measure, so it's not accurate) and it's 9 5/8"

To answer an earlier question, I work at a demolition company, so i get loads of interesting stuff.....

I think It will be an 8" PVC with a propane moniter, I might shorten the chamber to about 10".. As for the chamber fan you are right it will be easy to mount.