The average water heater lasts 8–12 years. With proper maintenance, many last 15 or more. Neglect it, and you might find yourself without hot water — or worse, with water damage from a failed tank.
Flush the Tank Annually
Sediment accumulates at the bottom of your water heater tank over time, reducing efficiency and causing rumbling sounds. Flushing the tank once a year removes the buildup. Turn off the heater, connect a hose to the drain valve, and drain a few gallons until the water runs clear.
Test the Pressure Relief Valve
The T&P relief valve prevents your tank from over-pressurizing. Lift the lever briefly once a year — water should flow out and stop when you release it. If it doesn't operate correctly or drips constantly, it needs replacement. Critical for safety.
Check the Anode Rod Every 3 Years
The anode rod attracts corrosive elements in the water, protecting the tank walls. When depleted, the tank itself starts corroding. Replacing it every 3–5 years is one of the best investments in extending your water heater's life.
Set the Temperature Correctly
The Department of Energy recommends 120°F — hot enough to kill bacteria, cool enough to prevent scalding and reduce energy use. Every 10°F reduction saves roughly 3–5% on water heating costs.
Know When to Call a Pro
Flushing and temperature checks are DIY-friendly. Anode rod and T&P valve replacement are worth having a plumber handle. Any time you see corrosion, leaks, or the unit is over 10 years old, get a professional assessment.
Water heater making strange noises or running out of hot water faster? Call us at (626) 412-0601 — we service all brands.
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