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How Long Do Tankless Water Heaters Last?

Posted by Gary Gray on Oct 23, 2020

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We've talked before about the benefits of tankless water heaters. They save you money on your utility bills, they eliminate inconsistent water temperatures, and they don't explode when you're on vacation! But did you know they also have a lifespan that's twice as long as standard water heaters?

What is a Tankless Water Heater? 

Also referred to as on-demand water heaters, gas or electric-powered tankless water heaters rapidly heat water as it runs through a heat exchanger. The hot water is then delivered directly to your faucets and showers. Because they only use energy when you turn on the hot water, tankless heaters are over 20% more energy efficient on average than gas-fired storage tank models.

An Enviable Lifespan

The best tankless water heaters have a life expectancy of more than 20 years, nearly double that of storage water heaters. And because they have parts that are easily replaced, you can often extend their life by many more years than you could with a traditional model. Extending a tankless heater's life is good for the environment, too, as it keeps them out of landfills, a typical final destination for storage tanks.

An added bonus: tankless water heaters also come with longer warranties to match their longer life. Just be sure to get a model that offers the longest possible warranty on the heat exchanger.

Why do tankless water heaters last so much longer than storage tank units? The #1 reason is because they don't store mineral-filled water that, over time, can become corrosive to a storage unit's interior. Storage heaters bake corrosive minerals like scale onto the bottom of the heater which eventually reduces efficiency.

One final advantage to tankless water heaters is their size. They're much smaller than conventional models, with most no larger than a suitcase-sized box that easily mounts on a wall.

Gas or Electric?

David Gray Plumbing offers both types.

Tankless Water Heater Installation

Ready to make the switch to a tankless water heater? We're experts in the installation of all types and models. Keep in mind you might need to upgrade your electrical system to handle the power a tankless unit needs. But the investment is one that will quickly pay you back in the form of lower utility and repair bills.

To learn more about which tankless water heater is right for your Jacksonville, FL home, or to schedule an in-home consultation, contact David Gray Plumbing Services online today or call us at 904-724-7211.

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