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Low heat from hydronic baseboard radiators

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  • Gordy
    Gordy Member Posts: 9,546
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    Closely spaced t's

    Essentially what you have is a hydraulically decoupled baseboard because of the closely spaced t's. Much the same scenario as primary secondary piping.
  • Paul48
    Paul48 Member Posts: 4,469
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    Gordy

    They're monoflow tees.
  • Gordy
    Gordy Member Posts: 9,546
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    I Know

    http://www.heatinghelp.com/forum-thread/86859/Mono-Flow-Ts-Spacing
  • Paul48
    Paul48 Member Posts: 4,469
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    P/S

    I just can't stretch to compare it to P/S, in which one does not affect the other.That's not possible with monoflow tees. The zone valve will screw the works up anyway.B&G's designs show a single emitter, off one or two monoflow tees.Zoning is accomplished with multiple circulated mains.
  • unclejohn
    unclejohn Member Posts: 1,833
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    Looks

    To me like the arrows are pointing toward each other which may be correct if you w2ant to force water down but the piped appear to be pointingup. Also the distancee between the tee's should be the same as the lenth of baseboard. 48" of BB 48" between tees.
  • izthebye
    izthebye Member Posts: 13
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    Update and clarification

    Just to clarify, the pix are of pipes in the ceiling.

    Update: I have installed a small Watts domestic hot water circulating pump  in  the larger branch of the downstairs radiators and although it has not cured the entire problem, that radiator bank gets warmer than it ever has and the living room is habitable again. This will probably hold me over for the winter and come summer, I'll probably scrap the loop and set up a manifold and use Pex piping. The copper in the loop has probably increased in scrap value enough to pay for the Pex!

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