Weil-McLain
ManufacturingIllinois, United States201-500 Employees
Weil-McLain is a mid-sized North American manufacturer with a long history in designing and producing hydronic heating systems for residential, commercial, and institutional buildings, dating back to 1881. Headquartered in Burr Ridge, Illinois, the company runs manufacturing facilities in Michigan City, Indiana and Eden, North Carolina, supported by an administrative office in Burr Ridge and regional sales offices nationwide. Its product lineup includes residential and commercial boilers, indirect fired water heaters, and hydronic baseboards that are installed in homes, offices, schools, restaurants, hotels, churches, and similar facilities. The company serves a broad set of customers, including architects, engineers, distributors, contractors, facility managers, and homeowners, helping to meet space heating and domestic hot water needs across varied building types. In 2025, Weil-McLain introduced B100 compatibility for residential oil boilers, expanding its offering for compatible, high-efficiency heating solutions.
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