I have a tank less water heater and the instructions do not recommend taking a "Navy shower" style shower....90% of our trips are Boone docking with no hook ups ugh...It states that the water flow must be constantly running the entire time the shower is running to maintain a constant temperature. If you stop the flow and then resume the cold water will backflow into the hot side and cause an erratic temperature. I even messed with the hot adjustment valve but didn't have any success. I still can't get it to run at a constant temp with it running constantly?? Missing the old 6 or 8 gal tank in my old 2002 TT.
