Award Winning

The original Eternal Hybrid™ shook up the industry in 2006. It even caught the attention of Extreme Makeover: Home Edition designer Ed Sanders.

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How It Works

See How it WorksWe break the laws of physics by taking an opposite approach to water heating. Compare the Eternal difference to how other water heaters work.

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Customer Reviews

See What Others Are Saying about the EternalWant to see what actual customers think of their Eternal Hybrid™? Read our most recent reviews posted by owners and check out our testimonials section.

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Eternal Hybrid Water Heater

Eternal is the first to combine tank and tankless hot water heater features to create a consistent water heating system. Capable of supplying nearly instant and endless hot water, the original units launched in 2006 and now has over 2 million days of combined usage. Furthermore, the next generation Eternal Condensing Hybrid is the only gas hybrid water heater to be listed with Energy Star.