Thanks for your input everyone. We have a 2 story 2k square foot house, built in 1993. It's a split foyer with an open stairway that allows a good deal of air movement between the floors. We'd like to heat the first level with a wood stove and allow the warm air to rise through the open stairway to the second level. Each floor has approx 1k square feet, a pretty evenly split floorplan. We live in Iowa so overnight temps in January can get down to 0. From reading on the forum I know not to gauge the size of the stove by the recommend sq feet that it will heat. My question is how large of a firebox to look for? 2 cu feet? 3 cu feet? (This will be supplemental heating and the first floor is a walk out basement.) Thanks. Anything else I should think about?