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Gifford Loop ?

RAF Member Posts: 65
Wondering if anyone has used the Gifford loop and how it's working out?


  • Polycarp
    Polycarp Member Posts: 135
    old post, new reply

    I know this post is really old, but I installed a Gifford on my system and it has worked great. I've had no hammer, even with other parts of the system being messed up.
  • Dave in QCA
    Dave in QCA Member Posts: 1,784

    JPF321, a poster who has not been around for a while installed a new boiler a year or so ago.  He used a Gifford loop.  As I recall, he was quite happy with it.  You can find some of his posts.  He has links in his signature line to many photos of his installation.
    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.
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