I think this may have been brought up before but here goes anyway. My last few fires I've noticed some smokey exhaust smell. I think maybe it smells because I recently cleaned my chimney and pipe and noticed some dust that was sucked in between the pipe joints? I bet this is where the exhaust is leaking out on first light off until a good draft is going. Can someone use that Boss Fire Stop silicone between the joints to form a permanent seal? Seems like it would be less hassle and mess than stove cement.