It seems that when the autoclean feature kicks in every three hours or so, all the momentum I had in maintaining my house temperature goes down the drain. I am heating a large area and when the autoclean feature turns on, I lose about 3-4 degrees by the time the stove turns back on. For instance, today in NJ it is about 18 degrees, very cold by my standards, and I am having a tough time maintaining 65 degrees because of the unit turning off every 3 hours. I have my heat output set at 5 and my fan is on normal. On a typical 30 degree day, though, no problems. Are you guys seeing this as well? FYI, I am trying to heat 2200 sq ft on my first floor, open floor plan.