Last night the temps got down to 12 deg in SE Mass, the Jotul Oslo I have worked well burning red and white oak. I put a small floor fan to the side of the stove and what a difference that made in moving the heat around the first floor. The in floor (first floor ceiling to second floor space) fan also moved plenty of heat upstairs for the night time hours. Choked the stove at 10:30 pm with a full load and had some good coals this morning at 6:30. So far so good....All thats missing now is a little white stuff...