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Williamson GWC Boiler

  • AFUE’s above 91%
  • PVC or stainless steel venting
  • Cast iron primary heat exchanger
  • Stainless steel condensing secondary heat exchanger
  • Sealed combustion or direct exhaust venting
  • Multiple pass heat exchanger
  • Control module with indicator lights
ModelA.G.A. Input (MBH)DOE Heating Capacity (MBH)Net I=B=R Ratings (MBH)Min. Vent SizeAnnual Fuel Utilization Efficiency (AFUE)
GWC-0707065563″91.9
GWC-10510597843″91.2
GWC-1401401301133″91.4
GWC-1751751611403″91.0
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