Girard Tankless Water Heater
I just wanted to pass along my experience. I had previously had the Girard Tankless Water heater that was original equipment in my 2016 Grayhawk 29MV . Unfortunately I froze up the whole rig and the water heater was just one of the items I had to replace. I decided to go with the Girard 3rd Generation although many people suggested other products as well as a tank water heater. I just got caught in Wyoming with night time temps in the mid twenties and no way to get my MH inside or otherwise protect it. The Girard 3 states that it has a freeze protection mode that will operate anytime the temperature falls below 38 degree and will heat and recycle to prevent freezing if there is battery power and propane. This was my only option and I simply hoped it would work. I am so pleased to report that it worked like a charm. I ran a space heater inside the coach and had the tank heaters on, and nothing froze up and broke. Not only did I encounter low temps for one night I had freezing temps as I traveled south. One day did not get above 40 and my MH suffered no damage.
I'm not recommending that everyone try this, but it is good news if you get caught and have no real other alternatives.