Here are a couple pics of our new Whale Seaward S1100.
The front looks similar to (I'd imagine) what your coach originally had installed. The back is pretty plain, but has the two inlet/outlet barbs on it.
The box itself measures 16" high by 16" wide and 22" deep... just about the same size as our original water heater.
This one runs on 110v, and also heats from the engine's radiator when you're running down the road. This one…Continue