quick thinking here, don't think there's a return in the basement. There's 2 parts to the basement, unfinished and shoddily finished. So much that I scrapped my plans of making my office in it. $$ shortage keeps me from ripping everything down and doing it right. Maybe when i win the lottery i'll do something with it. simply used for storage now. the area is relatively open so when the furnace runs it's actually pretty decent in there.