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Product Registration

Register Your Product 

Navien uses the information from our website to measure statistics such as: number of visits, pages visited, and information requested.

Navien will never send unsolicited e-mail or share the e-mail or url address with other companies.

If you are a contractor trying to register a unit for NavienRewards, please click here to go to NavienRewards.com.

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Customer Information


Optional. Send the registration confirmation & warranty info to an additional email address.

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Product Information


Certain water treatment products installed inline with your tankless water heater after 10/10/24 add one more year to your product's labor warranty. If this applies to you, please fill out the following information.

Product Serial number is 15-16 digits and can be found either on the right side of the box or the back of the front cover.
Navien, Inc. Technical Customer Service Department
To register a warranty replacement unit please call 800-519-8794, option 3.
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