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Nest 3rd gen to replace existing wireless thermo on Baxi 105e

Discussion in 'Plumbing and Central Heating' started by kjacko, 27 Nov 2018.

  1. Sam Roberts

    Sam Roberts

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    Should look something like this:

    67618A7C-AF6B-42C8-946E-01D7EA6F0905.png
     
  2. kjacko

    kjacko

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    Hi, i think it was the 'pre-heat' setting. It was set for a few hours prior to the proper time for it to come on. Changing it to the minimum has sorted the issue.
     
  3. Sam Roberts

    Sam Roberts

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    Ah yes I think a mate had similar issues with a hive system, he had it set to (for arguments sake) come on at 6am for when he got up, but it was coming on at about 4am to get to the temperature by 6. Glad it’s sorted
     
  4. stem

    stem

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    So the above was a red herring then, or did your previous controls also have a pre-heat setting you weren't aware of?
     
  5. kjacko

    kjacko

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    Honestly don’t know stem.
    All I know is that it works as intended now and is certainly better than the old system so it’s all good
     
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  6. ianmcd

    ianmcd

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    The way the nest works , it leans all the time about how quickly your house heats up and say you want your house at 20 C at 7 AM the nest knows what the outside temp is and will calculate how long it will take to bring your house to that temp and will bring it on early, the alloted time changes with outside temperatures and existing temp within the room that the nest is located, it doesnt mean that if you set it at 20 c at 7 that the boiler will come on at 7
     
  7. dilalio

    dilalio

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    Yup... With these 'learning' stats, its the user that needs to 'learn'!
     
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  8. diyhov

    diyhov

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    Adding a 16 C setting at 6am and moving the 21 C setting to 6:15am should also achieve the same, without having to alter the per heat, which you can then benefit from during the day/eve.
     
  9. DIYnot Local

    DIYnot Local

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