My stove is only a few months old, Drolet Escape 1800. For the first month I would always notice flames comming from the air holes in tubes which i believe is called the secondary burn. This no longer happens and the ash doesnt seem to burn down as well. And I have to leave my draft open longer to get the fire hot enough. I cant imagine my chimney needs to be cleaned already, burning dry hardwood. Anyone have any ideas as to what might be the problem?