I have a round tube enclosed at one end. I pack the tube vertically with a mix of pellets and wood chips, around 80/20%. When an inch from the top I will light with a good propane burner to get a good flame. I will let it burn for a few minutes (as it stands vertically). After say, 4 mins I will blow it out and place in the middle back of the traeger. Haven't had one go out yet and they can last for a few hours. I put my meat in the Traeger as soon as the smoker tube is going, I read somewhere that smoke is attracted better to cold meat. I usually let that run for 10 mins and then start the Traeger.