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Grundfos Alpha Instructions

Alan (California Radiant) Forbes
Alan (California Radiant) Forbes Member Posts: 4,588
in THE MAIN WALL
Screenshot 2025-10-29 at 6.39.37 AM.png
8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

Two btu per sq ft for degree difference for a slab
GGross

Comments

  • GGross
    GGross Member Posts: 1,655

    These are the high quality install manuals we come to expect in 2025. I think they have since updated them on their website

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  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,588

    Take your pick. The first one was with the instructions that came with the pump. This one is online. I've heard it makes no difference.

    Screenshot 2025-10-29 at 7.34.56 AM.png
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab

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