Engineering Documents

AN UPDATE ABOUT COVID-19:Health and safety is at the heart of everything we do.Learn more

Engineering Documents

Select files to download

Clear selections

NPE Sizing Calculator
Navien Rebate Finder
Installer/Service Locator
Distributor/Sales Rep
Product Registration
Training

Use our NPE sizing calculator

Select the right size for your NPE

Download the Navisizer app

Navien Rebate Finder

Navien Installer/Services Locator

Find the nearest Navien Service Specialist including installers and service providers.

Distributor & sales rep locator

Enter your state, city, or zip code to find a Navien Sales rep or distributor near you.

Product Registration

Online Product Registration

Navien uses the information from our web site 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.

Customer Information

See Privacy Policy about collection and usage of your Personal 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

Training Information

Navien Academy
Go to Calendar

Navien Virtual Trainings
See Classes

Academy Experience
Watch video

In-Field Training
Find training near you