infloor radiant

  1. D

    Radiant Heating, Snow Melt, and Pool Heat... Just one Boiler?

    Long time reader, first time posting. We are in the process of building a 3,300 SQFT 4 bedroom, 3 bath house just outside of Buffalo, New York. I am working on designing my hydronic heating system with primary and secondary loops and have several challenges that I am looking for general guidance...
  2. J

    Grundfos Alpha 15-55f stuck in 1 GPM

    I have a Navien NCB-240E combi located on the third floor supplying DHW to the house and infloor hydronic to the first floor. It feeds a 3-loop Wirsbo manifold on the first floor (two loops on one thermostat and one on another). A Grundfos Alpha 15-55F (maybe 5-6 years old) is on the return...
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