i used the wrong caulk to seal my other stove and had to cut the selkirk pipe to get the stove off. i used a adjustable selkirk piece to reattatch it. i inserted the factory end of the adjustable pipe into the cut end and then put the factory end of the tee into the open end of the adjustable piece. i used tons of caulk and tape to seal it. im still getting alot of smoke on start up and smoke smell throught the burn. any suggestions? this is a 13 foot run that is cemented together because i used the wrong sealer and id hate to have to replace it.