Weil McLain
Brand Names
About Weil McLain
Weil-McLain is the largest boiler brand in North America by volume. Founded in 1881 as Weil Brothers in Chicago, the company rebranded to Weil-McLain in 1918 after acquiring J.H. McLain Company. Now headquartered in Burr Ridge, Illinois with manufacturing in Michigan City, Indiana and Eden, North Carolina, Weil-McLain has been building boilers for over 140 years.
The product lineup centers on hydronic heating - cast iron boilers, condensing boilers, combi-boilers, and indirect-fired water heaters for residential and commercial applications. Weil-McLain operates its own cast iron foundry in Michigan City alongside state-of-the-art testing laboratories. The company is owned by SPX Technologies and acquired Williamson Thermoflo (oil furnaces) in 1999.
For homes with hydronic (boiler-based) heating systems, Weil-McLain is the default choice contractors reach for. High-efficiency condensing models qualify for federal tax credits, and upgrading from an older cast iron boiler to a modern condensing unit can cut heating fuel consumption by 15-30%. Weil-McLain's scale means parts availability and contractor familiarity are rarely an issue.
UniColorado Heating & Cooling serves Denver homeowners with expert heat pump installations, delivering efficient climate control across Littleton, Aurora, Boulder, and the Front Range.
Brand Names
What This Means for Your Tax Return
Use QMID V6H2 on IRS Form 5695
The QMID identifies the qualified manufacturer on your tax return
30% maximum, up to $2k
Heat pumps meeting efficiency requirements qualify for the highest credit amount
Equipment must meet efficiency requirements
The 25C Energy Efficient Home Improvement Credit requires specific SEER2/EER2/HSPF2 ratings
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