Hello, sorry for the silly question, but I got a Winter Wood Furnace for my residence from some past event and when I finally tried to place it in the house there seems to be no way, wherever i put it it's red and it either says "cannot be placed on interior floor" or "cannot be placed on interior floor object", even afer i empried the house entirely (there wasn't one single item in there, 0 points, not even flooring). So I was wondering where I am supposed to put this furnace. Thank you!

you have to place it close to wall, its very "special" placing, kinda need to find magic pixel.