I have an Englander 25EPI and very pleased overall but single digit temps make it hard to get the ranch style house over 66 degrees. Burning on a heat range of 4 with Energex pellets, I've been scraping the burn pot daily. I was wondering if I should leave the hot bed of burning ash on the bottom. While half the holes are covered with ash, a fair amount are open. That ash appears very hot. Thinking of letting the ash build overnight and see if it raises the temp. Happy to hear any input.