Temperature difference to start fan

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  • Alexc
    Automated Home Sr Member
    • Apr 2013
    • 82

    Temperature difference to start fan

    When our tumble dryer is on (condenser dryer), the temperature in the utility room increases by several degrees, and the humidity decreases. I need to create an object in Cortex that represents the tumble dryer and that, if true, will switch on the fan.

    I also have a temperature and humidity sensor in the kitchen, so I suspect a good way to do this would be that if the temperature in the utility room is more than 2 degrees higher than that in the kitchen, then it's true and I can use that to switch on the fan.

    Could someone point me in the right direction?

    Thanks

    Alex
  • Viv
    Automated Home Ninja
    • Dec 2004
    • 284

    #2
    There is a specific 'Fan Control' object that may suite your needs.
    Specifically it can operate the fan based upon how the Humidity is changing, comparing two humidity sensors, or Dewpoint.
    Also it can be made to work only at certain times of day to prevent noise at night.

    Viv

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    • Alexc
      Automated Home Sr Member
      • Apr 2013
      • 82

      #3
      Thanks Viv. I can't find it anywhere! 26.10.4.

      Alex

      Comment

      • chris_j_hunter
        Automated Home Legend
        • Dec 2007
        • 1713

        #4
        Top bar of Cortex window / Help / do a search on Fan ...

        it's an option within the Relay object ...

        HTH

        Chris
        Our self-build - going further with HA...

        Comment

        • Alexc
          Automated Home Sr Member
          • Apr 2013
          • 82

          #5
          Thanks Chris - I hadn't realised it is part of a relay object, but have it now.

          Alex

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