At U.S. Boiler Company, we are proud to manufacture American-made residential cast iron and condensing boilers. Our quality hydronic heating products have been designed, engineered and produced domestically. In fact, our U.S. Boiler brand is one of the most recognized in the American home heating industry! Manufactured in Lancaster, PA, our facility employs nearly 300 people from the community. All the products that leave our facility have been designed, engineered and produced domestically for exclusive use in the North American hydronics market. That makes us who we are, and keeps us in touch with our customer base.