Can two atmospheric appliances be connected to one power venter?
Yes, as long as the power venter is sized to handle the maximum input BTU rating of both appliances put together and each appliance has its own control kit. It would be recommended to use the control kits with a post purge, so that they will keep the power venter running a period of time longer, to make sure all of the flue gases are properly expelled. You would wire the power sides of the control kits in parallel and “tee” the pressure switches together, then wire the control side of the control kit to each appliance. Also make sure you have adequate combustion air for both of the appliances in case they fire together so they do not de-pressurize the room or house.
