Originally Posted by Dave_Jan
Probably the coldest I have ever been while camping or rv'ing. Dropped to below 10 a couple of nights. I put a little heater in the water compartment and water heater compartment. One night I forgot to turn on the heater in the water heater compartment and the tankless heater froze, no lines burst but, no water flow. Tubing thawed and all is ok. It was very cold. I am thinking about changing to a hot water tank. Looking for a "kit" of some sort.
I am surprised your Girard froze, it is supposed to have a freeze-protection feature called the "Winter Use Device" installed where it will fire the burner to maintain the heat exchanger's temperature above 38 degrees F. The water heater has to be turned on (at the outside switch) and have propane available to work of course. I wonder if it was just the lines leading to/from the heater that froze and stopped the water flow?
I don't know of any "kit" to change out the water heater, I researched the issue thoroughly for my coach. I ended up just buying a new heater online and working through the installation myself for my Seneca. A 6-gallon Suburban water heater might
fit in the Girard's original cutout, however it is deeper than the Girard. I wanted more HW capacity so I went with a 10-gallon Atwood XT which required a larger exterior cutout and other modifications to get it to fit. I also opted for a gas/electric unit so I also can now use campground electricity to heat my water, other than always burning my propane. I am very happy with how my installation went.