Water heater (tank) lifespan: 8–12 years

A water heater (tank) typically lasts 8–12 years. The most common failure point is tank corrosion and leaking; anode rod depletion. Typical manufacturer warranty: typically 6–12 years on the tank.

Typical lifespan

8–12 years

Common failure point

Tank corrosion and leaking; anode rod depletion

Typical warranty

Typically 6–12 years on the tank

These are general published reference ranges, not a model-specific lookup; always verify against the manufacturer's own documentation. Age and model identity cannot establish safety. Record your own installation or manufacture date, inspection observations, and a replacement-cost range in the ApplianceAgeBook workspace to plan a specific reserve for your unit.

Method version 1.0.0. Publication date: 2026-09-11.