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Williamson-Thermoflo represents the combined experience and expertise of two of the oldest and most reputable brands in HVAC. Their catalog of hot water and steam boilers was built on a foundation of value from dependability. Their products enjoy a long lifespan and a long warranty, allowing you to feel secure knowing that your home will be comfortable with a Williamson-Thermoflo boiler for years to come.
GWA - 70,000 BTU - Hot Water Boiler - NG - 83% AFUE - Chimney Vented - Up to 2,000 Ft.
GWA - 140,000 BTU - Hot Water Boiler - NG - 82.5% AFUE - Chimney Vented - Up to 2,000 Ft.
GWA - 105,000 BTU - Hot Water Boiler - NG - 83% AFUE - Chimney Vented - Up to 2,000 Ft.
GWI - 47,500 BTU - Hot Water Boiler - LP - 83% AFUE - Direct Vented - Up to 2,000 Ft.
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Bolingbrook, IL 60490
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