Guide: hot water upkeep

Simple Water Heater Maintenance for Homeowners

A little yearly care helps a tank water heater last longer and work better. Here is what to check and when to leave it to a professional.

Look for leaks. Check fittings, the drain valve and the base of the tank.
Inspect the anode rod. It protects the tank from corrosion and wears out over time.
Have a technician check the burner, thermocouple or elements.

Yearly tasks

Test the relief valve. Raise the little lever for a second or two. Water should flow out the discharge pipe and stop when released. If it drips afterward, call.
Flush sediment. Thread a garden hose onto the drain cock, lead it to the floor drain and let water flow until it runs clear.
Check the temperature. Somewhere near 49 to 60 °C keeps water comfortable while limiting scald risk. Ask about mixing valves if you have young children.
Look for leaks. Check fittings, the drain valve and the base of the tank.
Check venting. On gas tanks, make sure the vent is secure and there are no signs of spillage such as soot.

Hot water from the drain valve can scald. Turn off the gas or power first and let the water cool before flushing, or use caution.

Inspect the anode rod. It protects the tank from corrosion and wears out over time.
Have a technician check the burner, thermocouple or elements.

If your tank is rented, check your contract. The rental company may require that only they perform maintenance.

Ring us if the tank leaks, makes loud noises, produces rusty water or runs out of hot water quickly. See water heater repair and water heater replacement.

No. They need regular descaling and venting checks instead of sediment flushing and anode inspection.