Weil-McLain means warmth and comfort. Our energy-efficient, high-quality gas and oil-fired boilers are designed to fit any size residential application.

Explore our line of award-winning residential gas-fired boilers. Compatible with natural gas or liquid propane. Water and steam systems available.

Discover the future of home heating with Weil-McLain's newest innovation – the Simplicity™ combi boiler. Engineered for high efficiency and dependable performance, this residential gas boiler is designed to deliver reliable comfort and convenience.

Jan 8, 2016 · Understanding Residential Boiler Efficiency Ratings. Boiler efficiency is measured by annual fuel utilization efficiency (AFUE), for units under 300,000 BTUH input. The Federal Trade Commission requires new boilers to display their AFUE so consumers can compare heating efficiencies of various models.

Homeowner resources for residential boilers. Locate contractors for boiler installation or service. Find heating system energy guides and protection plans.

Weil-McLain® is a leading North American brand of hydronic comfort heating systems for residential, commercial and institutional buildings, since 1881. Contractors, engineers, architects, homeowners and facility managers rely on Weil-McLain boilers for their comfort heating needs.

Whether you’re in the market for high efficiency residential boilers or commercial boilers—for a new application or retrofit—look to Weil-McLain.

With a full line of boilers and the experts behind them, Weil-McLain is here to help make you successful. From the cast iron boilers we built our name on to easy-to-install-and-service high-efficiency boilers, no other supplier provides products and support like ours.

Available for both water and steam systems, high efficiency residential oil boilers from Weil-McLain are rugged, reliable, and produce more heat per BTU than a standard gas-fueled system. With the proper maintenance, a residential oil boiler can last for decades.

Jan 8, 2016 · A lot of light commercial and residential buildings in the U.S. have older boiler heating systems that are inefficient and could benefit from higher efficiency retrofits or boiler replacements. The following are examples of what could be done to improve their energy efficiency, reduce the operating costs, extend the life of the equipment and ...