|
I don't think that's the case with every RV tankless being limited to 1.5GPM, they are very reluctant to publish a curve or graph on delivery over a range of incoming water temperature. I would recommend giving PrecisionTemp a call. It's a small company that makes RV tankless and they are located in Cincinnati. They're small enough you can actually talk to an engineer. They make a model that seems very good on paper at least; they're about the same price as Truma but you can self install.
I would not be concerned with temperature loss in the piping between the water heater and shower head. If yours is like many fifth wheel models and has the bathroom at the top of the stairs, that's one of the shortest runs on the camper. That distance is the same regardless of what water heater you have.
|