Water Heater Maintenance Tips
Below are practical water heater maintenance tips homeowners can follow. By following these tips and accounting for differences based on the type of water heater you own, you can reduce breakdowns, improve efficiency, and ensure a steady supply of hot water throughout your home.
1. Visual Inspection
How often: Monthly quick check
- All water heaters: Look for signs of leaks, corrosion, rust, or loose connections on the tank, pipes, and fittings. Catching small issues early can prevent expensive repairs.
- By type: For tankless water heaters, also inspect vents and surrounding areas for dust, debris, or blockages that could restrict airflow.
2. Flush the System
Why it matters: Flushing removes sediment and mineral buildup that reduces efficiency and damages components.
- Tank water heaters: Flush the tank once a year to clear sediment that can slow heating and increase energy use.
- Tankless water heaters: While these units don’t store water, periodic flushing is still recommended — especially in hard water areas — to remove mineral deposits from the heat exchanger.
3. Lower the Temperature
Recommended setting: About 120°F
- All water heaters: Lowering the temperature improves energy efficiency, reduces wear on components, and lowers the risk of scalding.
- Adjustment tips: Thermostat access and settings vary by model, so follow the manufacturer’s instructions carefully.
4. Replace the Anode Rod
Applies to: Tank water heaters only
- The anode rod attracts corrosive minerals to protect the tank. Inspect it annually and replace it every 3 to 5 years, or sooner if heavily corroded.
5. Test the Pressure Relief Valve
Safety check: At least once per year
- All water heaters: Lift the pressure relief valve lever briefly. A working valve should release a short burst of water into the drainpipe. If it doesn’t, the valve may need replacement.
6. Schedule Professional Inspections
Why it helps: Professionals can catch problems early and ensure safe operation.
- All systems: A licensed technician can identify hidden issues, check electrical or gas components, and verify proper pressure and venting.
- Frequency: Annual inspections are recommended, though older units may benefit from more frequent checks.
Keeping Your Water Heater in Top Shape
Consistent water heater maintenance improves efficiency, extends system lifespan, and helps avoid unexpected and costly repairs. A small investment of time or an annual professional visit can ensure reliable hot water and lower operating costs for years to come.
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