Grand Hall, USD Headquarters

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Grand Hall welcomes people who bring passion to work every day. We take care of our employees like family in a safe and professional workplace.

Energy Star Power

Star Power

See how much you can save with the one and only Energy Star gas hybrid

Use our savings calculator to find out just how much money and energy you can save.

View Our Case Studies

Happy Customers

Look at our collection of real world case studies

Eternal Condensing Hybrid is the solution for your hot water needs. But you dont have to take our word for it.

Justin Larson #88

Race to the top!

See Eternal and Reno Power #88 Chevrolet

Eternal has teamed up with Reno Power to sponsor Justin Larson Racing as he races for the ASA Late Model South Series Championship.

Southern PHC Magazine

The Eternal Story

Eternal Hybrid featured in Southern PHC Magazine

Read all about the Eternal Hybrid and how the Grand Hall created the world first hybrid water heater.

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Enjoy peace of mind knowing your unit is backed by one of the industry’s best warranties.Get covered today by completing our quick and easy registration process.

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Federal Tax Credit

Find out how you can qualify for up to $1500 rebate on the purchase/installation of your new Eternal! Learn more about your state's program in our rebates section.

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Customer Reviews

Want 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.