Water Heater Maintenance Guide | United Plumbing Blog

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Water Heater Maintenance| Step By Step Guide

Proper water heater maintenance is essential to ensure your system runs efficiently and lasts as long as possible. Whether you have a tank or tankless water heater, following a maintenance schedule can help you avoid unexpected breakdowns, ensure optimal performance, and extend the life of your water heater. 

Water heater maintenance

Preventive on a hot water heater maintenance includes regular inspections and cleaning. A professional technician will typically:

Here is a step-by-step guide on how to flush your tank water heater:

Step 1: Turn off the Water Heater

  • Gas Water Heater: Turn the thermostat to the “Pilot” setting.
  • Electric Water Heater: Switch off the power at the breaker box.
Hot water heater maintenance
Water heater maintenance

Step 2: Turn off the Cold Water Supply

  • Locate the cold water shutoff valve on top of the water heater and turn it off to prevent more water from entering the tank.
How to flush a water heater

Step 3: Connect a Garden Hose

How to flush water heater: Step 1
How to flush hot water heater: Step 2
How to drain a water heater: Step 3

Step 4: Open the Pressure Relief Valve

  • Open the pressure relief valve at the top of the heater to allow air to enter the tank. This will help the water flow out faster during the drain.

Step 5: Drain the Water Heater

  • Open the drain valve at the bottom of the tank to let the water flow out through the hose. Be cautious, as the water may be hot.

Step 6: Flush the Tank

  • Once the tank is empty, turn the cold water supply back on for a few minutes to stir up any remaining sediment. This will help flush out debris.
  • Keep the drain valve open and allow the water to run through until it comes out clear.

Step 7: Close the Drain Valve

  • After flushing, close the drain valve and remove the garden hose.

Step 8: Refill the Tank

  • Close the pressure relief valve and turn the cold water supply back on to fill the tank. Open a hot water faucet somewhere in the house to release trapped air from the lines. Let it run until a steady stream of water flows.

Step 9: Turn the Water Heater Back On

  • Gas Water Heater: Set the thermostat back to your desired temperature.
  • Electric Water Heater: Turn the power back on at the breaker box.

Step 10: Check for Leaks

Ensure there are no leaks around the drain valve, pressure relief valve, or any other connections.

This type of preventive maintenance on a hot water heater is critical to maintaining the efficiency and longevity of your system. It’s also worth noting that if you drain water heater every 6 months, it will prolong its lifespan. In this video you can see how to flush a water heater.

What If I Have a Tankless Water Heater?

Maintenance for a tankless water heater follows a completely unique procedure and requires a different approach compared to traditional tank models. This specialized maintenance is crucial for ensuring optimal performance and efficiency. To learn more about the specific steps involved in maintaining a tankless water heater, you can read more about it in this article.

Benefits of Water Heater Maintenance

Performing regular water heater maintenance offers several advantages that go beyond just preventing unexpected failures.

Extend the Life of the Unit

One of the most significant benefits of preventative maintenance on a hot water heater is extending the unit’s lifespan.Traditional tank water heaters typically have a life expectancy of 8 to 12 years. Tankless water heaters tend to have a much longer lifespan than tank water heaters. On average, a tankless unit can last between 20 to 25 years. By regularly flushing the tank, checking components, and performing a water heater cleaning, you reduce the risk of corrosion and wear, which means your system can last for years longer than a neglected one.

Warranty Protection

Many water heater manufacturers require proof of regular maintenance to honor warranties. Preventive maintenance on a hot water heater includes flushing the tank, checking the anode rod, and inspecting safety features, all of which are key for ensuring that your unit remains covered under warranty.

Improve Performance of the Water Heater

A well-maintained water heater operates more efficiently. Regular hot water heater maintenance ensures that sediment buildup is minimized, heating elements are in good condition, and the unit can heat water faster and more consistently. This not only improves performance but also saves energy, lowering your utility bills.

Water heater maintenance is crucial for extending the life of your unit, ensuring warranty protection, and keeping your system performing efficiently. Whether you have a traditional or tankless water heater, regular maintenance will save you money and prevent unexpected issues.

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FAQ: Water Heater Maintenance

For tank water heaters, you should flush the system once a year to remove sediment buildup. If you live in an area with hard water, you may need to flush it every 6 month..

Yes, the anode rod should be inspected every year and replaced every 3-5 years to prevent corrosion inside your tank water heater.

Yes, basic tasks like flushing the tank or descaling a tankless unit can be done by homeowners. However, it’s a good idea to have a professional check the unit annually for more complex inspections.

If you skip regular hot water heater maintenance, sediment and mineral buildup can reduce efficiency, shorten the lifespan of the unit, and lead to costly repairs or replacements.

Yes! Regular preventative maintenance can help your tank water heater last up to 15 years and your tankless water heater up to 20 years or more.

While you can do basic maintenance yourself, it’s a good idea to have a professional perform a full inspection once a year to catch any potential problems.

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