Originally Posted by jcramer
...With this installed is it possible to drain the water heater? If it can't be drained is this an issue?...
Interesting addition if that is indeed what you have. It sounds like the only way to drain the tank is to remove the element, which would make it a chore.
Obviously, the tank needs to be drained at the end of the camping season if you do not plan to use it in freezing weather. But if your tank is mounted aft of the axles, it is a good idea to drain the tank between camping trips to lighten the load & avoid rear end separation issues.
You indicated that a PO had installed the system. Does it look like a store-bought kit? I'm curious about where the thermostat is mounted. If it has a thermostat, make sure it makes good contact with the tank. If there is no thermostat, you would be better off just using the gas heat.