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Steam Boiler Side Outlet type..... What was your experience with it?

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Joseph_4
Joseph_4 Posts: 320
in THE MAIN WALL

Hi,

Im thinking of putting in my first Steam Boiler with a side outlet ( Green Mountain Makes one in their GMGS series) for technical reasons. Ive been told it can cause water carry over problems into the Main and steam wont dry out as well.. Has anyone followed manufacturer install instructions and still have bad experience with it? I plan to pipe in using a Drop Header.

Thanks Joe

Comments

  • neilc
    neilc Posts: 3,201

    pipe it to the manual, size and all, don't forget the skim outlet,

    known to beat dead horses
  • Joseph_4
    Joseph_4 Posts: 320

    any problems?

    thx

    Joe

  • pecmsg
    pecmsg Posts: 7,487

    if piped as per the manufacturer no

  • EBEBRATT-Ed
    EBEBRATT-Ed Posts: 20,947

    Utica uses side outlets, and some do not like it for that reason. But if piped right and skimmed (like any other boiler) they work.

    Mad Dog_2ethicalpaul
  • 109A_5
    109A_5 Posts: 4,363
    edited December 2025

    The boilers look the same too, Utica PEG-F and the GMGS Series. Who made Who…

    image.png image.png
    National - U.S. Gas Boiler 45+ Years Old
    Steam 300 SQ. FT. - EDR 347
    One Pipe System
  • ethicalpaul
    ethicalpaul Posts: 8,993
    edited December 2025

    my first boiler I experienced was a 112k BTU Utica.

    It was piped very wrong (vertical non-header) and only used 1 outlet with 2” pipe.

    Despite that, it would only carry over if the water quality was bad

    Otherwise it performed fine. Follow the manual and you’re all set.

    Use TSP to wash out most of the oils then skim as per the manual

    NJ Steam Homeowner.
    See my sight glass boiler videos: https://bit.ly/3sZW1el

  • Joseph_4
    Joseph_4 Posts: 320

    thank you!

    Joe

  • EBEBRATT-Ed
    EBEBRATT-Ed Posts: 20,947

    Never heard of "Green Mountain Makes" Must be a Vermont boiler LOl

    ethicalpaul
  • Steamhead
    Steamhead Posts: 18,834

    Rebranded Dunkirk, just like the Utica PEG-F and Columbia CEG-F. Pipe it right and you won't have issues.

    Co-Founder, All Steamed Up, Inc.

    Baltimore, MD, USA

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