How To Turn Off Hot Water Heater Vacation. Some units, there will be difficulties to turn it on again, lighting a pilot light comes to mind for gas powered. Steps before going on vacations and turning off the main water valve:
You just simply leave your hot water tank on the pilot and you will find the water warm when you come back. This can be in a sub board as well. Shut off exterior faucets and drain the pipes.
Shut off exterior faucets and drain the pipes.
Have been leaving the water heater (gas with power vent) alone. Once you return from vacation, do a visual inspection of the appliance. You may also choose to turn your hot water heater off completely. If your water is shut off for long periods of time and you use your hot water heavily, this can create the risk of serious damage.