rockwood wrote:If this tube ends in the hopper it is there to make positive pressure in the hopper so you won't have smoke coming back through the auger tube to the hopper when the stoker is running. It keeps the fire from burning back through the auger as well.
That makes sense. Can't say for sure where it ended since the top half is melted. I suppose I should attach a new one to the hopper wall away from the burner end.