Introducing the NEW Alta Combi
The world’s FIRST & ONLY 10:1, gas-adaptive, combi boiler!
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Customer Service Portal
Check an order status, create and manage pending RMAs, and search for parts and serial numbers.
Boiler Cross-Reference
To see an honest and complete perspective of how our products compare to the competition, we encourage you to visit our boiler cross-reference tool!
Digital Heating Toolbox
Searching for a repair part? Completing a heat loss calculation? Here are some great tools to make your job easier.
Technical Videos
Check out instructional videos demonstrating combustion testing, LP conversions, and more!
Technical Literature
Installation and Operating Manuals, Instruction Sheets, and Quick Start Guides.
Product Literature
Help your customers learn more about U.S. Boiler equipment.
Manufacturer’s Warranty
Refer to the product’s warranty for information about coverage.
Order Status
Quickly check PO numbers that have been invoiced in the last 30 days without signing in.
Boiler Resource Center
Download U.S. Boiler product images, company logo, literature, and more!
Promotional Gear
Order U.S. Boiler Company decals, stickers, jackets, shirts, hats, and more!
USB University
U.S.B-U is an online training program designed to educate heating professionals and help them save critical time on hydronic installations and service.