I have had pretty poor luck with the pellet tray. Constantly goes out. I am trying to use a propane smoker and wonder if that is the issue. If I put it too close to a lower vent it catches fire. If I put it on a shelf up 6" instantly goes out. If I put it on the bottom next to the propane fire it will burn occasionally but weak. I have excellent draft so wonder if the propane burner is taking the oxygen?