How to Maintain Your Water Heater for Long-Term Performance

Your water heater works hard every day to keep your showers warm, dishes clean, and laundry fresh—but how often do you think about maintaining it? Just like any other appliance in your home, routine maintenance is key to getting the most life and efficiency out of your water heater. In this guide, we’ll show you simple, effective steps to extend the lifespan of your water heater and avoid costly breakdowns—especially here in Idaho, where mineral-rich water can take its toll.

1. Why Water Heater Maintenance Matters

Ignoring your water heater can lead to sediment buildup, reduced efficiency, inconsistent water temperatures, and even premature failure. Routine maintenance:

• Saves energy and lowers utility bills

• Improves water quality and heating speed

• Helps you spot minor issues before they become expensive repairs

• Extends your unit’s lifespan—often by several years

2. Flush the Tank Annually

Over time, sediment and mineral deposits collect at the bottom of your tank, especially in areas like Idaho where hard water is common. This buildup reduces efficiency and can cause popping or rumbling noises.

How to do it:

• Turn off the power or gas and the cold water supply.

• Connect a hose to the drain valve and empty the tank.

• Briefly open the cold water valve to flush out remaining debris.

• Refill the tank and restore power/gas.

  
  

Tip: If you’re not comfortable doing this yourself, a professional can flush your system safely in about 30–60 minutes.

3. Check the Anode Rod Every 2–3 Years

The anode rod prevents your tank from rusting by attracting corrosion to itself. Over time, it deteriorates and stops protecting the tank.

Signs it needs replacing:

• It’s less than ½ inch thick

• It’s coated in calcium

• The core steel wire is exposed

  
  

Replacing a worn anode rod is far cheaper than replacing a corroded tank.

4. Set the Temperature to 120°F

Many manufacturers default water heaters to 140°F, but that’s hotter than most households need—and it wastes energy. Setting your heater to 120°F is:

• Safer for kids and seniors

• More energy efficient

• Better for preventing mineral buildup

  
  

You can adjust the temperature using your unit’s thermostat, or call us if you’re unsure how.

5. Inspect for Leaks, Rust, and Moisture

Do a quick visual inspection of your water heater every month. Look for:

• Pooled water near the base

• Rust or corrosion on pipes or the tank

• Moisture or mold nearby

  
  

Catching these signs early can prevent flooding and major repair bills.

6. Know When to Call a Pro

Not every issue is DIY-friendly. If you notice:

• Strange noises from the tank

• Consistently lukewarm water

• A spike in your energy bills

• Frequent restarts or tripped breakers

…it’s time to call a professional for an inspection. At Just Water Heaters, we provide honest, fast, and local service to homeowners across Idaho.

Keep Your Hot Water Flowing

Regular maintenance doesn’t take much time, but it can make a big difference in how long your water heater lasts and how well it performs. Whether you’re looking for help flushing your tank, checking your anode rod, or simply making sure everything’s running smoothly, Just Water Heaters is here to help.

Schedule a maintenance check today and keep your home running warm and worry-free.