I recently purchased an off-the-grid summer home. Solar, water collection, and propane for hot water, fridge and freezer. Everything works incredibly well.
But we often leave for a few days at a time and I always turn the breaker for the water pump so that if something springs a leak it won't drain the cistern. I actually turn that breaker even if we go away for a few hours. But I just realized that if we leave for a day or two and the water heater sprung a leak and drained out what would happen? Do gas water heaters have an auto shut off if they detect no water in the tank or could this conceivably melt something and cause a fire? My hope is that it would just remain on pilot mode and nothing would happen but then I wasn't sure if it was safe to leave gas heater in pilot mode with an empty tank.
My main home uses an oil furnace and hot water is just moved into a tank so it's a new system to me.
Thanks for any help/advice.