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Zoned STEAM????

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takoateli
takoateli Member Posts: 41
in Strictly Steam
Saw this today. Boiler is a large atmospheric Weil Mclain.


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  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,574
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    It can be zoned but it can greatly affect how the condensate returns. Sometimes you need a boiler feed or condensate pump.
    Long Beach Ed
  • mattmia2
    mattmia2 Member Posts: 9,707
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    You can do it but not like that. There need to be drips at the zone valves to keep condensate from stacking up on the closed valve, especially the vertical one.
    Long Beach Ed
  • ethicalpaul
    ethicalpaul Member Posts: 5,708
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    If you thought the boiler was oversized before.... :sweat_smile:
    NJ Steam Homeowner. See my sight glass boiler videos: https://bit.ly/3sZW1el
    Dave in QCA
  • Dave in QCA
    Dave in QCA Member Posts: 1,786
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    If that's an LGB model, hopefully they hooked up the 2 stage valve. 
    Dave in Quad Cities, America
    Weil-McLain 680 with Riello 2-stage burner, December 2012. Firing rate=375MBH Low, 690MBH Hi.
    System = Early Dunham 2-pipe Vacuo-Vapor (inlet and outlet both at bottom of radiators) Traps are Dunham #2 rebuilt w. Barnes-Jones Cage Units, Dunham-Bush 1E, Mepco 1E, and Armstrong TS-2. All valves haveTunstall orifices sized at 8 oz.
    Current connected load EDR= 1,259 sq ft, Original system EDR = 2,100 sq ft Vaporstat, 13 oz cutout, 4 oz cutin - Temp. control Tekmar 279.
    http://grandviewdavenport.com
    ethicalpaul
  • Long Beach Ed
    Long Beach Ed Member Posts: 1,211
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    Many zoned systems out there, usually in commercial buildings and churches. It's fun figuring them out and always rewarding to backwards engineer them and find that the dead guys often did everything exactly right.
    Dave in QCA

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