I cleaned my stove, many times over now. I have checked Every nook and cranny and cleaned them all, My problem is the 2 vents on the side (the secondary air) is pulling more air than what is coming through the burn pot, the thing burned good an clean when these were plugged with ash from the previous owner but since I got them cleaned out I have had tall flames that touch the top of the burn box and when ash builds up on the burn pot the flames start to get lazy. I have replaced the door gasket and checked the glass gaskets but no luck, I have pulled the burn pot off multiple times and the air path and pot are clean as a whistle. visual inspection of the dampers on the sides are wide open and the damper for the burn pot is only open 1/4" maybe a little less. if I plug the side inlets the fire is still tall but very active but the glass gets dirty within a few hours. HelP! Just a little more info for you, checked all holes in burn pot and they are clear. thought problem was the combustion blower and replaced (old one was getting noisy anyways), also cleaned the vent pipes.