Specifying Engineer

Specifying Engineers

We have the products, services & support tools you need to meet your customers’ hot water demands.

Need personalized support?

Contact a local A. O. Smith rep for additional help.

Specifying Design Tools & Resources

Giving our partners the tools they need to specify our complete product line.

Commercial Pro-Size Tool

Use our tool to size an A. O. Smith commercial water heater to meet your specs.

Commercial Technology Selector (Under Construction)

Select the right commercial technology for your facility.

Water Heater Cross Reference

Find a new A. O. Smith replacement model. 

A. O. Smith App

Download our App for access to our tools while you’re on the job.

Product Support, Literature, Images & Videos

Access to the latest product support, literature, images, and videos.

Revit Files

Product specific BIM files can be plugged into your 3D design.

Potable Water / Hydronic Expansion Tank Sizing

Use this sizing tool to calculate the proper expansion tank to meet your requirements.

AHRI Directory Certification Search

Search the AHRI Directory of Certified Product Performance for A.O. Smith certified product performance ratings.

Global University training

Get ASPE CEU Credits & More from A. O. Smith University

Stay up to speed on our product technology and gain continued

education credits with A. O. Smith University’s live, on-demand &

on-campus training.

Cyclone XL

Cyclone XL:

The Best Just Got Bigger.

Introducing A. O. Smith’s Cyclone XL technology. The industry’s #1 most specified unit can now deliver up to 1 MM BTU’s for all of your large capacity needs. 

Tankless Rack system

Tankless Rack Systems:

More BTU’s, More Space Saved.

Get up to Almost 1.6 Million BTUs with One Rack System

Heat Pump

Heat Pump:

Savings are in the Air.

Learn how you can save your customers money with A. O. Smith’s commercial heat pump water heaters.

Johnny Unitus Colts game

Committed to Innovation On & Off the Field

As the presenting sponsor of the Johnny Unitas Golden Arm Award(R), A. O. Smith and the Golden Arm Foundation are committed to driving innovation and education through scholarships for young leaders on and off the field.

Industry Partnerships
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AHRI member logo
Energy star logo