Originally Posted by whporwil
I'm really trying to understand how things work. My problem is private campgrounds which most are lack the water pressure to maintain hot water. Most pressure switches on wells come on at 40 psi and off at 60 psi. In the morning when several people are showering at the same time my heater cuts on and off as the pressure falls below the required 45 psi. I now use my water pump and fresh water tank to shower, it's just a pain to have to go outside to make the change.
I had that same issue with my first-generation Girard, as well as other issues where it just would not stay lit. My dealer tried several times to repair/adjust it to no avail. It got to the point I just replaced it myself with a 10-gallon Atwood XT tank unit. Very happy with my hot water now.
You (should) have a later generation Girard than I did, but I know they are still very "sensitive" about water flow. That is what is so nice about a tank unit, you can trickle the flow and not get cold spikes because the burner shut down to prevent scalding. I hear the Truma units are better in that respect, especially if it is upgraded to the "Comfort" model. But neither the Truma nor the Girard allow one to heat water with electricity, but my Atwood does!
I see the 2019 Senecas have an Atwood gas/electric like mine (now). Not sure if they went back due to complaints or cost.