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Big mouth vent internal view

ARobertson13
ARobertson13 Member Posts: 75
in Strictly Steam

I finally started testing the Big mouth vents after hearing good reviews about them for years. Does anyone have any internal images of them. I would like to avoid messing up the one spare I have not knowing how to disassemble it.

Comments

  • delcrossv
    delcrossv Member Posts: 1,896

    Pictures are on this thread:

    https://forum.heatinghelp.com/discussion/199694/hoffman-75-failing
    Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.
  • Dave in QCA
    Dave in QCA Member Posts: 1,801

    This is normal for a Hoffman 75. There is nothing wrong with it.

    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

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