A.O. Smith offers a broad selection of commercial hydronic boilers with all-copper heat exchangers.

A.O. Smith

The company offers a broad selection of commercial hydronic boilers with all-copper heat exchangers, including 90% efficient Legend boilers (rear) up to 1 million Btu input, and 84% efficient Genesis boilers (front) up to 2.5 million Btu. Both have small footprints and are designed for ease of installation and venting versatility.