18-28-903.1.3 Vented gas fireplaces (not including direct vent) located in habitable rooms (not including bathrooms and sleeping rooms).
   Vented gas fireplaces may be installed in habitable rooms (not including bathrooms and sleeping rooms) provided that:
   1.   The fireplace is listed.
   2.   The habitable room is an unconfined space.
   3.   The fireplace is installed in accordance with manufacturers' instructions.