Posted in my original thread but decided to start a new one just for my issue, some troubleshooting to do, an eventual smokey haze in the room made the smoke detector go off, she was burning nicely with a lively flame, but turned the stove off. Quick inspection all is fine inside and outside, pipe at top measured 130, no worries there. Thinking OAK sucking exhaust back in maybe and OAK is not perfectly sealed? also noticed the door was sticky to open and some fibres from the seal stuck on the box, normal? Outside there is only 38 inches or so of separation from the exhaust and OAK intake, I'm thinking I'll have to go higher, but how much? Should I seal every single joint inside with that orange stuff?