GWS - Gas Water Sealed Combustion

GWS - Gas Water Sealed Combustion

  • 63,000 to 158,000 Btuh Input
  • Natural or Propane
  • Versatile
  • Sealed combustion option allows use of outside combustion air
  • Factory tested
  • Compact design
  • Easy service
  • One-piece access door
  • Plug-in wiring
  • Control module with diagnostic lights
  • High efficiency
  • AFUE's to 85.3%
  • Spark-ignited pilot with electronic control
  • Cast iron sections with built-in air separator
  • Insulated heavy-gauge steel jacket
  • Limited lifetime warranty
  • Additional Information

    Efficiency Rating Chart: 
    Model A.G.A. Input (MBH) DOE Heating Capacity (MBH) Net I=B=R Ratings (MBH) Vent Size Annual Fuel Utilization Efficiency (AFUE) Shipping Weight
    *GWS-063 63 54 47 3" 85.3 240
    *GWS-090E 90 77 67 3" 85.0 280
    GWS-095 95 81 70 3" 84.6 280
    GWS-127 127 107 93 3" 84.0 325
    GWS-158 158 133 115 3" 83.4 370

    * As an Energy Star partner Williamson has determined that the GWS-063 & GWS-090E meet the Energy Star guidelines for energy efficiency.