A traditional residential storage tank water heater typically lasts between 8 to 12 years under normal operating conditions with regular annual maintenance. Modern tankless water heaters have a longer expected lifespan ranging from 15 to 20 years. Factors that heavily influence water heater longevity include local water hardness and mineral content, annual sediment flushing, operating at recommended temperatures, and proactive replacement of sacrificial anode rods. Verification: Check the serial number sticker on your water heater to determine its exact manufacturing date and age.
1 votes
Marked as accepted