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Discuss Question about opentherm in the Central Heating Forum area at UKPlumbersForums.co.uk.

  1. Husk24

    Husk24 Member

    hi guys

    Im thinking of buying a nest thermostat. I am aware my boiler is opentherm compatible. Im particularly interested in the way the boiler runs using opentherm. After installing this thermostat I decide do not like the way opentherm works, would it be easy as switching opentherm off from the nest settings or will it be wired in a way I would have to get it re-wired/changed?
     
  2. Harvest Fields

    Harvest Fields S. Mod Trusted Plumber GSR Top Contributor!!

    The second one mate
     
  3. Husk24

    Husk24 Member

    Damn
     
  4. Husk24

    Husk24 Member

    Is is more efficient cheaper to run it via opentherm?
     
  5. Harvest Fields

    Harvest Fields S. Mod Trusted Plumber GSR Top Contributor!!

    Depends on your house and how warm you like it. (It is more complicated than that, but very long winded)
     
  6. gingalig

    gingalig GSR

    It's designed to interlink as an open therm device. It baffles me as to why anyone would want to do anything different. You will have a huge scope of settings to tailor the outputs and timings to pretty much any of your requirements.
     
  7. Husk24

    Husk24 Member

    I guess the option to use ‘true radiant settings’ on the nest would be just as good.
     
  8. Husk24

    Husk24 Member

    @gingalig@gingalig

    So you would definitely recommend opentherm?
     
  9. Harvest Fields

    Harvest Fields S. Mod Trusted Plumber GSR Top Contributor!!

    No I would recommend ebus. But your boiler probably doesn’t support it if it has opentherm.
     
  10. gingalig

    gingalig GSR

    Your installer will look very confused if you try and suggest anything different, and would probably charge considerably more if they agreed to do it. If you really want more control or savings maybe consider evo home or drayton wiser. Nests are good though and very user friendly.
     
    Last edited: Jan 8, 2019
  11. Knappers

    Knappers Plumber GSR

    If you have an opentherm compatible boiler and wiring so you can connect nest with opentherm (bus) then do it - no brainer.
    Worry about the technical side later but you will have greater control over the boiler and the option not to use the advanced features, not using opentherm downgrades the nest to a very nice and fancy on and off switch.
     
  12. Husk24

    Husk24 Member

    I have a ideal logic system 30 boiler, a month old, can someone confirm it will definitely be opentherm compatible with all the connections or what ever is required
     
  13. gingalig

    gingalig GSR

    If you use a nest installer or alternatively a GSR then they will make all the necessary wiring connections and bring any other equipment required.
     
    • Like Like x 1
  14. garygvl

    garygvl GSR

    sorted out your heating problem then
     
  15. Husk24

    Husk24 Member

    I have a new boiler now, but the thermostat given has issues as per my other thread, doesn’t work all the time, I have even started thinking if it interferes with my cars sensor as they both run on the same frequency! It seems to work ok when my car is not at home (when im away) lol
     
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