“No doubt the pipe is fine. It's the connection to the stove that puzzles me. The female end Wlii not make a tight connection. It doesn't appear to even slip on without the inner SS part having to crush. The male end inserts and twists easily into the existing chimney but the female other end doesn't slide on to the exhaust port of the ComfortBuilt pellet stove at all. It appears that it would not seal at all and leak smoke into the house. I would appreciate a response, Lukas. My cell # is 206-999-7411 and my wife's e-mail is slgrout302@gmail.com”