We're restoring/renovating a 120-year-old home that has a beautiful cast-iron wood-burning fireplace in the dining room, very similar (but not identical) to this:
Is it possible to open up the backside of such a fireplace to have a double-sided fireplace, opening into the opposite room?
I've been told that it wouldn't work - that we'd either need a separate flue or smoke would just billow into the house. If that's so, does that mean it's impossible to have a two-sided wood-burning fireplace ever, or what factors need to be in place for such a fireplace to function correctly?
Thanks in advance.