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    Circulator size needed (3 Posts)

  • spacoli spacoli @ 6:42 AM
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    Circulator size needed

    Hi to all. I have a room with around 10,000 btu heat loss with two  equal loops (235 feet) of 1/2 inch pex radiant floor in concrete.

    I need a circulator size with a typical supply and return type manifold (home made tees),required ball valves and mixing valve. Any info, thought or opinions appreciated. Thanks
  • Zman Zman @ 9:00 AM
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    I would say Grundfos 15-58
    Ideally you will push about 2 gpm at a delta t of 10. The nice thing with the 15-58 is you can dial in the speed to get your delta t correct.
  • spacoli spacoli @ 6:52 PM
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    Carl, Thank you for your reply. I will give it a try.
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