Opentherm + EvoHome + Viessmann 111-W overshoots

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  • paulockenden
    Automated Home Legend
    • Apr 2015
    • 1719

    Originally posted by HenGus View Post
    This is the latest piece of research from BRE
    "What do you think are the advantages and disadvantages of OpenTherm? "

    "868MHz, simple command classes, robust mesh radio, good battery life, low cost"

    What?????

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    • DBMandrake
      Automated Home Legend
      • Sep 2014
      • 2361

      Looks like someone fed a couple of Honeywell brochures into an acronym based sentence generator ?

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      • dty
        Automated Home Ninja
        • Aug 2016
        • 489

        Originally posted by DBMandrake View Post
        Looks like someone fed a couple of Honeywell brochures into an acronym based sentence generator ?
        Hmm... several of those phrases don't apply to Evohome!

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        • HenGus
          Automated Home Legend
          • May 2014
          • 1001

          I did ask Honeywell which, if any, of their products have been through the BRE assessment process? The silence has been deafening. If I recall, Drayton products do appear on the EPC database which suggests that they have been tested.

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          • bruce_miranda
            Automated Home Legend
            • Jul 2014
            • 2307

            from another thread.

            Try setting the Tmax on the boiler BEFORE attaching the Opentherm bridge. I have seen this work in most cases.

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