posted 7 years ago
Steelmaster sold us a galvanuzed vent adapter, but looking at the instructions, the adaptor, which rests ON a rib, must not have the actual rib cut. They have 2 half-moons cut alongside the rib. This is untenable if we want to push a metal chimney through the roof.
Is it so terrible to cut one rib? Any suggestions for how to do this job appreciated! So far, I just see Steelmasters with an external metal chimney mounted to the endwall. 😕