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)
Water Heater Cross Reference
A. O. Smith App
Documents & Videos
Revit Files
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.
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.
Shop by Water Heater Category
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 Systems:
More BTU’s, More Space Saved.
Get up to Almost 1.6 Million BTUs with One Rack System
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.
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.
