Weil-McLain CGa-6 Series 3 166,000 BTU Cast Iron Natural Gas Boiler

Weil-McLain SKU: W381359078

Weil-McLain CGa-6 Series 3 166,000 BTU Cast Iron Natural Gas Boiler

  • 3.3 Gallon Boiler Water Content
  • 84% AFUE
  • 6" Vent Size
  • AHRI Certified

Save $962.67
Weil-McLainSKU: W381359078

Ready to Ship - Average Delivery Time of 1.85 Days
Retail price:
Sale price$3,240.77 USD Regular price$4,203.44 USD


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 alike rely on Weil-McLain boilers for their comfort heating needs. Installed in homes, offices, schools, restaurants, hotels, and other facilities throughout North America, the Weil-McLain brand is among the most trusted and often used in the building industry.


  • Natural draft, silent operation
  • Integrated Boiler Control Module with intermittent electronic ignition system and indicator/diagnostic lights
  • Compact design saves valuable living space
  • Built-in low water cut off functionality
  • Stainless steel burners for quieter ignition, longer life, and improved combustion
  • Gas fired water boiler with cast iron sections
  • Easily accessible controls, vertical flueways, and top cleaning for easy and quick servicing


In residential installations, this unit comes with a 20-year heat exchanger and 2-year parts limited manufacturer's warranty. For commercial installations, this unit comes with a 10-year heat exchanger and 1-year parts limited manufactuer's warranty.



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