Water Heater Age

FAQs: How Old Is Your Water Heater?

 

Knowing your water heater’s age helps you decide whether to service it or replace it—especially in the Phoenix Valley, where hard water shortens equipment life.

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How do I find my water heater’s age?

Look at the manufacturer’s label, some water heaters, the may have the date stamped right on that label, and others are coded in the serial number on the manufacturer’s label. Most brands encode the year (and often the week or month) of manufacture. Use the link (Find Date) above to calculate how old the unit is.

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How long do water heaters typically last in Arizona?

Typical tank-style units last 8–12 years here. The Heat and Arizona's hard water wear them out faster than in milder climates. Plan on replacement before year 10 to be safe.

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When should I replace it?

Consider replacing if any of these apply:

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• Average Without a Water Softener Age — It’s 8–12 years old. (Replace in 10-years)

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• Average With a Water Softener Age — It’s 5–8 years old. (Replace in 7-years)

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• Repair history — You’ve already paid for leaks, elements, or valve issues.

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• Less hot water — Showers run lukewarm or you run out sooner than you used to.

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• Signs of corrosion — At the top or bottom of the water heater tank.

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• Rising energy bills — An aging tank works harder and costs more to run.Rust or corrosion — Visible rust on the tank or rusty water means the unit is failing.

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Need help reading a serial number or deciding tank vs. tankless? Call Tankless Pros AZ at (602) 833-1533 for a free quote.