How To Turn Off Water Heater Water Supply. With that, you will open the way for cold water to flow in, and your sink and tubs will not get hot water. You create more problems by turning off the water heater between uses and back on within short periods of time.
Turn off the water supply and turn on the faucet on the hot water settings. You create more problems by turning off the water heater between uses and back on within short periods of time. To turn the water supply off, give a gate valve a few turns clockwise until you can’t turn it any longer.
If you have a gas water heater, find the burner control knob (usually located near the thermostat) and turn it to the off position or to the “pilot” setting to shut off the gas supply.
First, it can be disruptive and hard on the unit to be turned on and off. To find a water heaters’ gas shut off valve look for a single handle valve that would usually be. This can be caused by several problems, such as a water heater that is undersized. First, it can be disruptive and hard on the unit to be turned on and off.