My on demand water heater broke last year when Camping World winterized my trailer. I planned on doing it myself this year when I stumbled across an article that said the Grand Design owners manual, for my 2022 Reflection 226RK 5th wheel, was wrong on how to winterize the on demand water heater. If you have one of these Furrion water heaters, make sure you watch this to protect it from freezing.

Please note that a tankless water heater can be filled with antifreeze but a tank water heater should not be filled with antifreeze. It should be drained of water and bypassed from filling with anti freeze.