Sounds quite similar to what I was to do but with one BK King stove. 1850 sqft ranch on full basement. I was heating from my unfinished basement with a garage door in it. No ducting, just the stair well. Was short of my needs and was having slight creosote in the upper part of my masonry chimney.I'm trying to heat 2 floors at 1500sq ft from downstairs which happens to have 2 garage doors. I've done some work to seal them up but they still leak some air. Next winter will be better as we will be doing some renos. -25°c outside so quite cold, having to use stove upstairs as well to keep the entire plce warm.