I was surprised to see 41º on the thermometer this morning. The heat pump was running when I got up, but I decided to start a fire and burn out the cobwebs. The cat immediately got what was happening and promptly parked himself in front of the stove. He hasn't moved since. This is season 10 for the T6. There is a nice 3 log fire burning with a stove top at 500º, flue temp at 400º(p). Living room temp is 71º. I'll probably let it burn out over the day.