Tankless Water Heater Maintenance - Importance  Benefits  and Considerations

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William Creamer • June 23, 2019
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Your tankless water heater is a crucial part of your entire plumbing system and is even responsible for making every bath and shower a treat. You probably made a significant investment when you first had it installed. So, it’s just logical and practical to make sure that it’s maintained well for it to last long.

What is a Tankless Water Heater and How Does It Work?

As its name suggests, tankless water heaters don’t come with a storage tank where heated water is stored. Instead, the water heater directly heats the water as it comes in from the home’s water line. As a result, when you turn on the heated water faucet, the water heater will be activated and does its work. Tankless water heaters use heating elements that are collectively technically known as a heat exchanger. This heating mechanism is powered by electricity or gas.

The Importance of Proper and Regular Tankless Water Heater Maintenance

Tankless water heaters are rated to have a service life of at least 20 years. However, this can only be achieved if the unit is properly and regularly maintained. Unfortunately, many homeowners tend to put off tankless water heater maintenance because they are often sold and marketed as “low-maintenance,” particularly when compared to traditional tank water heaters. Truth be told, though, tankless water heaters need maintenance as much as tank water heaters. There are a number of factors that can damage your tankless water heater that if not checked, controlled, or mitigated, can render your unit useless.

Factors That Can Damage Your Tankless Water Heater


Among the primary culprits behind water heater damages is hard water deposits. Hard water is a kind of water that contains a lot of minerals, particularly calcium and magnesium. These minerals can build up in your tankless water heater and the heat exchanger. Over time, the minerals clog up the passage between the water line, the water heater, and the faucet. As a result, the water heater will no longer be able to heat water and release through the hot water faucet. At first, it will take longer than usual for the water heater to heat up and release water until it eventually stops working. The water heater will also use more electricity as its heating mechanism works longer. The water heater’s internal components will also be damaged, so you might need to have them repaired or replaced.

The Ideal Tankless Water Heater Maintenance Frequency

So, when and how often should you have a professional inspect and maintain your tankless water heater? Ideally, you should call in a professional plumber or HVAC contractor for a comprehensive check at least once a year. They will perform an inspection and cleaning, as well as see if any of the components need repair or replacement. However, there are cases where you’ll need water heater maintenance more than once a year. This is if:
  • You live in an area known to have really hard water
  • Your tankless water heater is often or always set to a high temperature

Regular and professional tankless water heater maintenance is an investment that can help you save on more expensive repairs and replacements in the long run. Fast Az Services is one of the most reputable home repair services in Alabama. Contact us today for any inquiries.

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