have a drolet 35 that doesn't keep a constant flame. it will reach a point where the flame is at its peak than it dies down to almost nothing than back up to a big flame. its constant and like clock work. drolet couldn't give me a answer other than the size of the pellets. they say the auger is constant so there is no cycle. can there be a burr of some sort on the auger where when it reaches that spot...the auger slows down where no rpellets come down? I have also a drolet 45 and when its on high or any setting....its blaring. theres no cycle at all. any suggestions?