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Eco pump using too much electricity.

kathya70 Member Posts: 1
New 20-18 Ecocirc pump triples energy use of b&g series 100 pump is this normal? I just replaced my circulating pump for my small single family residence.  On top of the energy usage which I can track on my Enphase system, my radiator whistles when the pump is on, I’m guessing that means the pressure is too high.  Any help would be appreciated.


  • Jamie Hall
    Jamie Hall Member Posts: 23,655
    How did you choose the new pump? Pumps vary widely in the relationship between the flow they create and the pressures they create it at -- you can't just swap one in for another one, even if they physically fit. It does sound as though you have much more flow and pressure than you did before -- and than you probably need.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • hot_rod
    hot_rod Member Posts: 22,483
    The ECO is a maximum 70W, the series 100 was

    at least 210W, depending on the motor size.
    What setting do you have the ECO running on? Is it a zone pump, or supplying zone valves.
    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream