The devil wrote at 1015hrs on a beautiful Sat morning:
My stove is in our (finished) basement & so it warms 2 floors.
Well then you better straighten out the Zeeman and his coal usage cause you must be doing it right! (Two floors or three?, Basement counts as a floor, doesn't it?)
As for me,I use my basement as do the kids. While not finished with insulation & panel, I performed a poor man's finish to it. Painted cinder block walls & floor, florescent lighting & some carpets. LS certainly has ancient stone walls in his castle with water piping heating system through out so in his case, he hasn't the need for a dungeon dragon like I do. But I bet his boiler house has lots of radiant heat leaking into the cold Michigan sky. But I think he has an attached workshop too.