Yesterday, in Upstate NY (Rochester), the temps reached -4 degrees. MY wife had off from school since that district closed. After a few reloads, we finally had our basement up to 75 degrees. I'm just curious, if we were to switch to the Oslo, how much hotter could we get, what would be the degree difference. We live a 1200 sq ft ranch, stove is in front of our staircase in our finished basement. Basement room is 10 x 20 roughly. Fairly good insulation. No ceiling in the basement, went for the rustic look and just painted the ceiling. 75 is comfortable, but that required all day to get there (plus faster reloads). Usually hovers at 70 degrees. I don't know if there is a simple formula to figure this out, but just curious.