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How to Prolong Water Heater Life

plumberleichhardt water-heater

There are types of water heater that have naturally a long life span. In fact, some heating systems actually last twice than others. For example: tankless water heaters have an average lifespan of 20 years — meanwhile a conventional heating unit only has 10-12 years. The thing is that no matter how long-lasting your water heater is; it won’t be able to fully complete its usage years if you don’t take care of it. Follow the tips below to learn more on how you can prolong the life of your water heater.


Flush the tank at least once a year

Now this tip is clearly for those who have water heaters that are tank types. Flushing the entirety of the tank will remove sediments that are built-up. This maintenance tip isn’t really much of a hassle since you only have to do it at least once a year. For those who have older units you might want to consider flushing the tank twice a year. This will ensure that no sediments are left at the bottom of the tank.

Here’s what you need to do in order to flush the tank

  1. First of all, turn off whichever fuel source you’re using for your water heater — whether it’s gas or electric.
  2. Shut down the cold water valve, more specifically the inlet connection
  3. Be sure to connect a garden hose to the bottom valve. The outlet of the hose should be long enough to be placed outside your house. This will prevent having a messy flush sequence.
  4. Open the valve that’s near where the garden hose was inserted. The tank will start draining the water
  5. After the tank has been drained, you need to turn the cold-water back on.
  6. Continue flushing for around five minutes. Again, you need to turn off the cold water.
  7. Disconnect the garden hose and then start the cold water to allow the tank to be filled again.

Pressure and relief valve check-up

The pressure and relief valve or the PRV instantly releases water if the tank has too much temperature and pressure. This valve is an important part since it prevents the water heater from exploding. Maintaining the PRV valve should be always on your checklist when doing a water heater upkeep. What you need to do for the valve’s maintenance is to drain one water quart from it. This method will help take out any sediment in the valve. Do this for at least every three months.

Checking and/or replacing the anode rod

Check the anode rod every three years and inspect if it has already corroded. A corroded or old anode rod is completely useless and can actually contribute to rusting. If you noticed that the anode rod has its wires exposed for more than 12 to 15 cm then it must be replaced. Another sign that you need a new anode rod is that most of its metallic surface has a lot of calcium deposits or lime scale.