On Tuesday morning the thermometer read -12F. The masonry heater was radiating at 168F but the living room was only 68F. You know it’s cold out when that happens!It was supposed to be sunny, but it was mostly weak sun through clouds, so I kept the wood stove going all day. I didn’t put more wood in the masonry heater because, you know, sun was supposed to shine and I had to work in the living room.