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Hydronic Flow Metering for Bill Separating

There was a fellow in NY who tried to bill his tenants for heat based upon a metering system. The courts threw him out. I do not know more than that. But check your leasing and the housing rental regs.



  • Fred Almeida
    Fred Almeida Member Posts: 12
    Hydronic Flow Metering for Bill Separating

    I've heard of some type of flow meters that can be installed on each zone of a multi-zone hydronic system for useage measuring. If anyone can help, I am researching the possibilities for a customer in RI who needs to properly adjust rent prices. Lots of them. Thanks, all!
  • Al Letellier_9
    Al Letellier_9 Member Posts: 929
    flow metering

    Can't help you with flow meters, which tend to be expensive, but if the system has circulators for each zone, the easiest thing to do is to put a run time meter on each pump. You can record minutes or hours run and total them up and use percentages to figure heat use.
  • Jeff Elston
    Jeff Elston Member Posts: 289
    Metering Heat in Apartment blds.

    I shot you an email with a link here it is again in case you missed it


    What you are looking for is our specialty. I install all of Monitor Data's systems and some other systems that we use to collect data. Monitor Data and Sunburst(who i work for) are co-owned hence the connection. We have a number of large accounts in Bean town. I would like to help any way I can. Thanks I hope this helps!

    To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"
  • Timco
    Timco Member Posts: 3,040


    These guys meter the run time of the circs or the EDR of steam systems in my area (SLC, UT.) They work great if you do the math as far as the heat factors & heatloss go.

    Just a guy running some pipes.
  • scott markle_2
    scott markle_2 Member Posts: 611

    I would think that any device that measures something that is being sold would have to be listed with a testing agency of some type. Seems like circulator run times, while indicative of use would not provide an accurate enough measure of true energy transfer. Flow rate and delta T measurement would be the only way to be completely fair.

    If it's more of a friendly how to split the bill thing I suppose circ. run times would be fine, if flow rates and deltas were consistent.

    To bad people are so bad at conserving things that they don't have to pay for.

  • Lyle C
    Lyle C Member Posts: 96
    flow metering

    Here's a link to a company I researched a while back. They use metering and delta T to figure heat loss. Seemed a good system. http://www.istec-corp.com/ Couldn't sell it at the time . It would have paid for itself many times over by now. Let us know how you make out . Always wondered how these systems last 5-10 years down the road.
  • hot_rod
    hot_rod Member Posts: 21,844
    Check out Siggy's column in Sept PM mag

    it talks about BTU metering.

    This is very common in Europe. Caleffi builds a nice metering system in a cabinet. It meters heat, DHW and cold water all in one box.

    I saw some installed in an apartment building we visited in Italy. They mount in the hall ways outside the units for ease of service and inspection.

    Caleffi may import them is enough interest is shown.

    hot rod
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
This discussion has been closed.