Click here to Find a Contractor in your area.
Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit

Dew Point Control for radiant cooling

KVieiraKVieira Member Posts: 5
I'm doing a geothermal w/ radiant cooling. I need a control to keep the radiant cooling above the dew point to prevent condensation from forming? Who make a dew point control for this?


  • EBEBRATT-EdEBEBRATT-Ed Member Posts: 8,071
    Google: Weiss Instruments.

    Their are others.
    If you need application help

    Try Kele Associates in TN. They sell controls and can give you some help

    The Weiss control looks simple and should work
  • ZmanZman Member Posts: 6,322
    I think tekmar has a t-stat that calcs it from outdoor temp.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • Harvey RamerHarvey Ramer Member Posts: 2,215
    Tekmar has the 553 communicating thermostat that has a built in humidity sensor. It marries well with the new house control, 406 I believe. The water temp is then always kept 2 degrees above dew point. This setup is for a 2 pipe heating/cooling system. If you want to add air conditioning to work in concert with the floor cooling, you need the 557 thermostat to control the fan coil and set the rest of the 553's as part of an air group.
    Ramer Mechanical
    To learn more about this professional, click here to visit their ad in Find A Contractor.

Leave a Comment

BoldItalicStrikethroughOrdered listUnordered list
Align leftAlign centerAlign rightToggle HTML viewToggle full pageToggle lights
Drop image/file


It looks like you're new here. If you want to get involved, click one of these buttons!