Welcome to the forum! Nice mods! Last winter several rigs in our park with "on demand water heaters" didn't have hot water for several days because the incoming water was too cold for them to get anything more than warm. Just something to investigate.
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.