[tuga]

I have a question about the Aqua Hot heating shower water. There are 4 gate valves under my coach in the rear on driver's side forward of the muffler. Do these gate valves have anything to do with allowing engine to heat the 50/50 anti-freeze water in the Aqua Hot?

I am trying to learn how to get my engine (series 60) to heat the Aqua Hot shower water.

Is it possible for the engine alone to heat the water for showers?