Water Heater Maintenance 101
Your water heater works hard every day. Regular maintenance extends its life by years and keeps it running efficiently.
Annual Maintenance Tasks
1. Flush the Tank
Sediment builds up at the bottom, reducing efficiency and causing noise.
Steps:
- Turn off the heater (gas valve or circuit breaker)
- Attach a hose to the drain valve
- Run water until it's clear
- Close the valve and refill the tank before turning power back on
2. Test the T&P Valve
The temperature and pressure relief valve is a safety device.
- Place a bucket under the discharge pipe
- Lift the lever briefly
- Water should flow, then stop when released
- If it doesn't, or it leaks afterward, replace the valve
3. Check the Anode Rod
This sacrificial rod prevents tank corrosion.
- Turn off the heater and water supply
- Unscrew the rod from the top of the tank
- If it's less than 1/2" thick or coated with calcium, replace it
Monthly Checks
Visual Inspection
- Look for water pooling around the base
- Check for rust or corrosion
- Ensure the area around the heater is clear
Temperature Check
- Set temperature to 120°F for safety and efficiency
- Higher settings waste energy and risk scalding
Signs Your Water Heater Needs Attention
- Rusty water from hot tap
- Rumbling or popping sounds
- Inconsistent water temperature
- Water around the base of the unit
- Age over 10 years (tank) or 20 years (tankless)
Professional Service
Have a plumber inspect your water heater annually for:
- Gas line connections (gas heaters)
- Electrical components (electric heaters)
- Venting and exhaust systems
- Overall condition assessment
Time for water heater service? Find qualified water heater specialists near you.