Haven’t figured out the auger feed system on my Serenity yet. It makes no sense. On “manual” ....ie the stat should have no effect...Running on level 1.....I get a burn time of anywhere from a high of 20.5 hrs, to a low of 10.5 hrs. Same brand of pellets......same pallet. I contacted Ardisam, changed the controller and the board.....still no rhyme nor reason to the burn times. Last week I got 20+ hrs, with the outside temps of around 30. Last night I had temp in the teens...Filled the stoved at 8PM. This morning at 7, I had about 5 or 6 cups of pellets left. Am I the only one?