KN Series

From raw materials to the state-of-the-art digital control system, the complete line of KN Series products is proudly manufactured at the ATH facility in Boyertown, Pennsylvania. Utilizing decades of foundry and manufacturing expertise, KN Series boilers are cast, machined, wired and assembled to the tightest standards possible resulting in a finished product that is all-American in terms of innovation, reliability and craftsmanship. Go behind the scenes to see how KN Series Boilers are made.