Use Humidity to Modify Temperature

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The humidity information seems pointless to have in the Tado thermostat system as it stands. Why not use the humidity to modify the temperature setting to allow "feels like" temperature functionality?


The relationship between humidity and apparent temperature is that, for roughly a 10% increase in humidity, the apparent temperature increases by slightly less than 1deg C.


In the UK, where I live, the relative humidity in my house varies from about 40-65%. Having the temperature set point automatically adjusted according to humidity would add a bit more heat in the winter, when it's drier, and a bit less as summer approaches, without me having to change anything.

Answers

  • GrilledCheese2
    GrilledCheese2 ✭✭✭
    edited December 2020
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    @dazzaling69 an interesting suggestion for a useful feature. Tado already has a temperature offset feature for their system. This could easily be coupled with the humidity sensor to automatically adjust the offset value as humidity changes in the home.

    Alternatively, if this was not implemented in the App they could allow the offset value to be modified by IFTTT. We could then have applets that read the humidity and adjust the offset according to personal preference.

  • samd
    samd ✭✭✭
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    @dazzaling69 Interesting as others have said but would we be able to tell the difference at the sort of temperatures experienced within a house environment?

  • GrilledCheese2
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    I certainly notice it. Last month the humidity in my home was peaking at 55%. Last night the humidity was down to 38% and the lounge felt cooler than usual. It prompted me to check the the app and see that the heating was running, which it was.

  • dazzaling69
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    It's 1-2 degrees C over a typical humidity range in a house. Could be more in, e.g., a steamy bathroom. I would definitely feel 1-2C.

  • samd
    samd ✭✭✭
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    @dazzaling69 OK my comment was made cos I thought I had heard somewhere that the apparent temperature does not really become 'apparent' below 27C

  • CrogUk
    CrogUk ✭✭
    edited October 2021
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    @samd Just a thought, maybe this is the temperature at which humidity can be perceived i.e. 'Clammy' or 'Close' ?

    As for this idea I think there must be value in the 'feels like' value as come warmer months I reduce all my rooms by ~1-2 degrees.

    On a separate note 'Humidity' is not pointless as it currently stands (I Hope) I expect the Tado system is currently utilising Humidity to estimate the heating required to reach target temperature. I read somewhere that the heat required for heating humid air is somewhat increased for humid air, in effect you need to heat all the water in the air which uses lots more energy than if it were dry air etc.

  • samd
    samd ✭✭✭
    edited October 2021
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    @GrayDav4276 No idea about where they are used but if they are they must be Relative Humidity rather then Absolute and, therefore, dependent upon the reading of temperature by the individual radiator stat not known for its accuracy!. I use SensorPush devices ice-water temp-calibrated and calibrated for humidity and the two rads that I have done a direct comparison on are a considerable distance 'off'. Last week with 89% RH outside and house windows open with through draft SensorPush showing 70.5%, tado in same room showing 75%.

  • Ddobsy
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    Do we know if the humidity sensor is accurate? I’m at risk of mould apparently. The office is bone dry, one of our bedrooms has obvious damp (long story porous window sills) but they show the same humidity level.