Long time lurker, first time caller.I have a room that was a workshop and it was half finished with walls, and those walls were between this room and the smaller room where the furnace and water heater are. The ceiling is not finished so there are gaps at the top of the wall between the joists. I have installed a door where there was just a doorway, and I'm wondering if the openings at the top of the room will be enough venting for both the furnace and water heater, or do I need to install a wall vent. via /r/DIY http://ift.tt/2j6Gwga
