Refrigerator & water heaters

I leave my fridge on all spring/summer/fall unless it will be more then 3 weeks until my next outing. As for hot water heater, I see no reason to leave hot water heater on all the time if your not using the RV and its just parked as you are just wasting electricity and it only takes a flick of a switch and ~30min wait to get hot water.

Yup. Do it all the time. Refrigerator is never turned off except in the extreme winter (parked at home). This year is a first! Decided to keep water in the camper while at home and been keeping the water heater on and hot! No problem.

Our camper has an outside sink and stove and I've attached a water sprayer to the hose. Our camper is parked with about 99% privacy, and I've found I completely enjoy taking showers outside ... after dark! I'm going to have some bad withdraw when weather gets colder!

Refrigerator or water heater won't hurt a thing. Just be sure with the water heater that you leave water in your fresh tank and your pump on, or attached to a garden hose. If you loose water from the water heater, it needs to be replaced. If the water source is cut off, the tank could be low on water and then you could have problems. If the water heater over heats, the pressure relief valve will blow. This will remove the pressure and water. That's why you want to make sure you still have a water source for the heater.

BOth would be fine to leave on. The WH uses the same technology as most home units and is perfectly safe to leave on - as many fulltimers know.

We always have our rig plugged into shorepower here at home where it is stored when not in use. During the camping season we normally have our fridge running and stocked for quick, spur of the moment getaways. Although we have never had a reason to have water heater operation while our rig is stored, I would think there are no issues doing so as long as there is sufficient water in the tank.

The camper doesn't know if you're using it or not. The only caveat is use of electric. We use our appliances for months at a time, that'what they are for. I might leave frig on a/c on and hot water off completely. No sense wasting energy if not going to use hot water. This also assumes you want to store stuff in frig? Otherwise, no point in running frig either.

Yes to the refrigerator, not sure if you talking electric water heater, that would be a bit too much on a house outlet. If it is gas water heater then no problem running it.

In order to prevent any problems, we had an electrician put in a dedicated 30 amp line for our trailer.

I would not leave the water heater on. The refer is fine but be sure the rv is level.