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connie Member Posts: 2
what is the flow rate for half inch pex when applied to a conventional boiler with convectors


  • Mark Eatherton
    Mark Eatherton Member Posts: 5,853
    It depends....

    on NUMEROUS variables, like pump size and pipe length.

    A general guide is to limit the flow in a 1/2" pipe to less than 2 GPM, preferably more like 1.5 GPM.

    At a 20 degree F differential in temperature, that flow would deliver 15,000 btuH to a properly sized heat emitter.

    It's not so much a case of "You got what you paid for", as it is a matter of "You DIDN'T get what you DIDN'T pay for, and you're NOT going to get what you thought you were in the way of comfort". Borrowed from Heatboy.
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