The stove is currently in the basement. I have 3 levels. Full basement, main floor, and upstairs loft, bedrooms. There is a cathedral living room with the fireplace on an inside corner and it is open up to the loft area. The two upstairs bedrooms are off each side of the open loft.
There is a large fan blowing the hot air from the stove directly up the basement stairs to main, and I disconnected a cold air return and two other ducts to allow cold air in the cathedral living room to drop into the basement to make-up the air I'm trying to push up the stairs. It actually makes for pretty even heat through the house, but the stove has to be Cranking to do it. When it gets down to 20 degrees, it just can't maintain 70 degrees upstairs. The propane furnace would still come on, although not very often.
I know I would use much less coal, obviously, if I had the stove on the main floor and ran it mellow, vs having it in the basement running full bore trying to heat everything. This is my first year trying this, so I wasn't sure how it would work. I think I want to try it upstairs as an experiment, but I'd rather leave my newly built fireplace and damper un-molested.(if possible)