Life Expectancy of a Gas Water Heater


Gas water heaters are usually installed in homes that use gas in other appliances. They provide abundant hot water when in good shape. The amount and temperature of hot water will decrease as the water heater ages.

Average Life Expectancy

  • The average life expectancy of a gas water heater is about eight to 12 years. Some have been known to last much longer than that.

Life Expenctancy Factors

  • A number of factors can affect the life of your water heater. The climate and weather can affect how hard the heater must work. Maintenance and quality of installation also alter the life expectancy.

Other Appliances

  • Other gas appliances will compete with your water heater. Installing a new dryer will pull some of the available heat. Other appliances will use the hot water and reduce the amount available from the tap or shower.

Extending The Water Heater

  • Water heaters can develop leaks or may be affected by a faulty thermostat. Fixing the leaks and replacing the thermostat can add life to the appliance.

When to Replace

  • The water heater should be replaced if holes have developed from rust, or other leaks cannot be repaired. Older water heaters may also be too small, depending on the demand from family and appliances such as the dishwasher.

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