The average lifespan of a water heater depends on the type, usage, and maintenance, but most traditional tank water heaters typically last between 8 to 12 years. Tankless water heaters, on the other hand, generally have a longer lifespan of about 20 years or more, as they don’t store water and experience less wear over time. Factors such as water quality, frequency of use, and regular maintenance (like flushing the tank to remove sediment buildup) can significantly impact how long a water heater lasts. If your water heater is nearing the end of its expected lifespan, it’s a good idea to monitor it for signs of failure, such as inconsistent water temperature, strange noises, or leaks, and consider replacing it before it completely stops working.

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