Extractor fan for kitchen

Discussion in 'Electricians' Talk' started by JT843, Oct 27, 2021.

  1. JT843

    JT843 Member


    I am looking for this extractor fan for my kitchen:


    There are also these modules you can buy for it:

    I was thinking that ideally, we would have a humidity sensor so we don't have to remember to turn the fan on and off. What I don't understand is that the humidity modules all seem to be combined with something else, e.g. a motion detector / pull cord / timer. Isn't the point of the humidity sensor that the fan is always "on" but only starts extracting when it detects humidity above a certain %? So why would anything else be needed?

    Also, I wouldn't really want a pull cord hanging down - in that case would I need an isolation switch on the wall somewhere?
  2. Bazza

    Bazza Screwfix Select

    Nice fans, those!

    Humidity sensors, in my experience, have always been a hit and miss and unreliable way if ventilation. For a kitchen, just a straight fan, with no timer, but just a switch, is all you need.
    The switch can, of course, be located anywhere.
    JT843 likes this.

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