GMGS Series - Gas-Fired Steam Boiler | Green Mountain Boilers
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GMGS Series - Gas-Fired Steam Boiler

As rugged as the outdoors...for dependable comfort everyday.

Up to 82.7% AFUE MEA # 77-91-E



Features:

  • Available in 9 sizes from 75 to 299 Mbh.
  • Dependable Cast Iron Heat Exchanger with Cast Iron Push Nipples. The Sections and Push Nipples expand at the same rate when heated. By using similar materials instead of less expensive gaskets, the boiler maintains a water tight seal over time.
  • LWCO (Probe Type), Pressure High Limit Control, Pressure Gauge, Gauge Glass.
  • Atmospheric Chimney Vent Boiler with Integral Draft Hood and Vent Damper. Low profile compact design makes it ideal for low clearance installations.
  • Brass/copper pig tail siphon for long life.
  • 12 Year Limited Warranty(Residential Applications)

    • Efficiency:
    Mid-Efficiency

    Capacity:
    Nat./LP: 75/70, 112/105, 187/175, 225/210, 262/245, 299/280 MBH.

    Heat Exchanger:
    Cast Iron

    Combustion:
    Atmospheric

    Venting:
    Chimeny Vent

    Boiler Type:
    Steam

    Options:
    Both Natural Gas or LP models available.
    Electronic Water Feeder.
    Combustible Floor Plate.

    Downloads:

    Brochure
  • GMGS Brochure Rev 7/18/24
    • Installation & Operation Manual
  • GMGS - CONVERSION INSTRUCTIONS NATURAL GAS TO PROPANE
  • GMGS Generic Steam IOM Rev B
    • Other
  • GMGS CSA Certificate of Compliance
    • Parts Lists
  • GMGS Generic Steam Parts List Rev A
    • Technical Bulletin
  • Flood Bulletin
  • Heat Exchanger Failures and Maintaining Steam Boilers


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