I'm installing my stove this weekend and ran into a snag with the collar on the stove, after I installed the stove pipe I went to open the bypass , it wouldn't move, so we got to looking and noticed the pipe seemed to be in too far and was blocking the bypass lever, so we pulled out on the pipe slightly and freed it up and worked great but with the pipe pulled out that far I have a gap between the collar and the pipe, like the pipe isn't in all the way now. What to do? My only solution is to trim away some of the pipe that is blocking my bypass with the pipe all the way in. But should I have to do that, is everyone running into this with this stove or am I missing something??Thanks for your help!