Convert water heater to On-demand
A couple of thoughts. The Garrard is what most of the Berkshires come with. They are coming out with a Gen 3 that promises temperature control. Atwood also makes one and I know Mike and Sylvia put one in their MH maybe they will chime in. I saw a new product at the Tampa RV show but I can't find the literature I picked up. It looked very promising and offered full temp control. The problem with that system is the covers don't match. And they are white plastic. At any rate if you change the WH to a inline system you will have the added expense of a new cover and getting it painted. I wonder if you have room for a ten gallon system. I have heard that if you run them with both heat sources running it works almost like an in line system. If I find the name of the new system I will get it to you.
Phil and Dianna
2011 Berkshire 390 RB