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If you need to make any changes, please contact customer service at navien@shamrockcompanies.net
Customer Service may be reached. Our phone line is staffed from 8:00am - 5:00pm CST at (520) 687-0924.

TECHNICAL SUPPORT FOR NAVIEN WATER HEATERS: 800-519-8794, then select Option 2. 
Or at: https://www.navieninc.com/support.

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All Navien branded merchandise on this site is sold by a third party vendor.