To lengthen igniter life Traeger revised the protrusion spec of the igniter (hot rod) to 1/8". This was a few years back..The instructions included with a new igniter reflect this...It's the hot air being blown onto
the pellets that ignite them..As with all igniters, the area around them must be kept clear for the igniter to function @ it's best, or in some cases, function at all.