The U tube exhaust on my Atwood G6A-7 hot water heater is half covered by a piece of sheet metal. Is
your G6A-7 exhaust also half covered? Is this OEM from the factory? It sure seems like it since the sheet metal seems stamped rather than cut.
However, I have what appears to be a back pressure problem. The U tube is completely clear, so I'm just checking to see if this half-covered exhaust tube is by design.