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Metering heat

radmixradmix Posts: 185Member ✭✭
Would anyone have a suggestion on a brand of meter that can be used to separate the heating bills on a building that has a boiler with 8 zones of heat. I remember looking into this some time ago and from what i can recall you would need a device that meters flow and temp to get a BTU output for each zone.
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Comments

  • Paul48Paul48 Posts: 2,499Member ✭✭✭
    Why go through all that?

    The same btus are available to all zones, so time would reflect load, and personal preference.Am I not thinking right?
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  • Jim GodboutJim Godbout Posts: 49Member
    metering

    These are some what reasonable

    http://www.kele.com/Catalog/07%20Flow/PDFs/380%20Series%20Catalog%20Page.pdf

    Most are very pricy and can be troublesome over time.

    good luck
    Jim Godbout
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  • radmixradmix Posts: 185Member ✭✭
    metering

    Time doesn't reflect load with weather response controls. Also Two separate temps in system, Panel radiators and slab radiant
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  • Jim GodboutJim Godbout Posts: 49Member
    Temp and flow can measure output

    This can be done but costly
    Jim Godbout
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  • Paul48Paul48 Posts: 2,499Member ✭✭✭
    I

    guess btus per hour wouldn't apply in this case then.
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  • nicholas bonham-carternicholas bonham-carter Posts: 5,599Member ✭✭✭
    Metering

    Are all the apartments each on a single zone?

    Maybe a run-time meter could be put on each zone pump. While the pump runs, the meter advances. From the combined total of meter readings, each tennants share can be computed.--NBC
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  • Paul48Paul48 Posts: 2,499Member ✭✭✭
    Seemed Fair To Me

    Regardless of the controls or emitters, the run time of each zone tells the story.
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  • radmixradmix Posts: 185Member ✭✭
    Meters

    If the high Temp panel  radiators run for 1 hr. and the low temp radiant runs for 1 hr. are you transferring the same amount of Buts? Plus if a zone is running when its 30* out and another zone runs when its 60* out, Both run at the same length of time I don't think it would be accurate to assume your transferring the same amount of Buts
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  • Paul48Paul48 Posts: 2,499Member ✭✭✭
    Assumptions

    The assumption would be, that the zone would run long enough to transfer enough btus to compensate for the heat loss of the area. The high temp emitters would run shorter and more frequently. The radiant would run longer initially,  and less frequently.If a zone with high temp emitters chooses to keep the zone at 90*, the time will reflect it, and so will their portion of the bill.You make the necessary btus available.They use them how they prefer, and pay accordingly.
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  • Paul48Paul48 Posts: 2,499Member ✭✭✭
    edited November 2012
    Assumptions

    duplicate
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  • nicholas bonham-carternicholas bonham-carter Posts: 5,599Member ✭✭✭
    Heat meter

    I see the Grundphos magna has a built in heat meter, and wireless as well.--NBC
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  • radmixradmix Posts: 185Member ✭✭
    metering

    Were zoning using zone valves with one ECM Circ.
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  • nicholas bonham-carternicholas bonham-carter Posts: 5,599Member ✭✭✭
    heat metering

    i think the runtime meters will still work, as the zone valves are energized to stay open, right?--nbc
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