The answer to 'how to clean water heater' is to regularly flush and maintain your water heater to extend its lifespan and ensure efficient operation. This involves draining the tank, cleaning out sediment, and inspecting key components.
Start by turning off power to the water heater, either at the circuit breaker or by unplugging it. Then attach a garden hose to the drain valve at the bottom of the tank and run the other end to a floor drain or outside. Open the drain valve and let the tank fully empty. Once drained, close the valve and refill the tank. Turn the power back on and let the water heat up before use.