Maintenance

If your home has a check valve or pressure regulator, you likely need a water heater expansion tank. Here’s how to size and check one.

120°F is the standard recommended water heater setting — here’s why, how to test your thermostat, and how to replace one.

Cross-reference the correct flame rod or electrode kit part number for your Navien or Rinnai tankless model before you order.

Flushing a tank water heater just needs the drain valve and a hose — no descaling pump required. Here’s the full procedure and when to skip it.

Step-by-step anode rod replacement: tools, torque tips, and the socket size most tanks use. A 30-minute job that protects the whole tank.

The anode rod is what actually protects your tank from rusting through. Here’s how to check it, when to replace it, and which type to buy.

Step-by-step tankless flush procedure using the isolation valves, plus how often to do it based on your water hardness.