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A system from my past

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hot_rod
hot_rod Member Posts: 26,949
in THE MAIN WALL

we rented an Ab&b for a wedding in Missouri. A Canyonero to get the family here.

Turn out 20 years ago I installed a radiant floor in the kitchen of this 1886 home.

The Danfoss ZCP that Robert Bean developed.

Piped to the DHW tank for a small zone of radiant.

Standing water in this old basement corroded the components.

IMG_7716.jpeg IMG_7700.jpeg IMG_7699.jpeg IMG_7698.jpeg
Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream
PC7060Erin Holohan Haskell

Comments

  • Zman
    Zman Member Posts: 7,611

    I'm guessing that everyone is "fat and happy" until the wheels fall off. Looks like solid install. Love the warning label on the flat plate HX.

    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
    jamplumb
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 11,707
    edited May 2024
    https://forum.heatinghelp.com/discussion/comment/1801923#Comment_1801923

    And McDonald's coffee is HOT, but not as hot as it used to be in 1993.

    Edward Young Retired

    After you make that expensive repair and you still have the same problem, What will you check next?

    Alan (California Radiant) Forbes
  • DCContrarian
    DCContrarian Member Posts: 1,418

    Glad to see I'm not the only one who checks out the mechanical room first in an AirBNB.

    EdTheHeaterManGroundUp
  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,660

    We installed a few of those back in '02 and '03 in San Francisco. They were great.

    It always seems like yesterday when you go back and look at old installs.

    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
    PC7060jamplumb
  • hot_rod
    hot_rod Member Posts: 26,949

    they were great little systems

    Although they broke all the rules of thumb about pipe distances between the components. All the valves, pumps and HXers were close coupled to fit in the box🤫

    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
  • Alan (California Radiant) Forbes
    Alan (California Radiant) Forbes Member Posts: 4,660

    Just goes to show: Rules are meant to be broken.

    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
    9326yssh
  • BritoPlumbing
    BritoPlumbing Member Posts: 11

    “Reunited and it feels so good.”
    Reunited ‘cause the heat is good.

    PC7060

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