Maintenance / System care
Water heater care
Flushing, temperature settings and the signs a tank is near the end.
Tank water heaters typically last about 8 to 12 years. Sediment, a corroded anode rod and high temperatures shorten that. A little care helps, and knowing the warning signs avoids a flooded floor.
Once a year
- Drain a few gallons from the drain valve to flush sediment (follow your manual; the water is hot)
- Test the temperature and pressure relief valve if the manual recommends it
- Look at the base and fittings for rust or moisture
Every few years
- Have the anode rod checked; replacing it can extend tank life
- For tankless heaters, descale as the manual recommends, more often with hard water
Settings
120°F is a common setting that balances safety, comfort and energy use. Higher temperatures raise scalding risk; check with your manufacturer and household needs.
General maintenance information. Follow your equipment manuals and local codes, and hire licensed professionals for gas, electrical, roofing and other hazardous work. Home Maintenance Kings isn't paid by any brand or contractor.