Got to looking and found that sometime back ago I must have put foil tape over the whole, bottom front out side, that feeds the Dog House air inside the stove. So all winter I have been Burning with no Dog House Air. It does make a difference the stove burns much hotter now with the primary air shut down all the way. As a matter of fact its more liking to get too hot on me now. But I am getting her shut down quicker now to keep the burn under control.