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  1. In the 4 years that I owned a home with Evohome,...

    In the 4 years that I owned a home with Evohome, my experience was the same. Zones on the same schedule would invariably throw up low battery warnings within days of each other. It was often the case...
  2. I sold my Evohome home a year ago and I left my...

    I sold my Evohome home a year ago and I left my purchaser with a comprehensive guide which included Evohome manuals etc plus simple ‘get going’ advice for a new user. As indicated above, I deleted my...
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    The 'problem' is that Honeywell, like a number of...

    The 'problem' is that Honeywell, like a number of smart heating control manufacturers, uses a single study which allows claims like the following to be made:

    Quote Upgrading your basic timer and...
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    Putting to one side the complexity of Evohome (my...

    Putting to one side the complexity of Evohome (my wife and I are both retired), I have concluded that I would probably have to live another lifetime to recover the capital cost of a 14 radiator...
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    Quote: Compared to the house with standard...

    Quote:

    Compared to the house with standard TRVs, the one with the PTRVs used 11.8% less gas over the 49-day wintertime experimental period, the boiler output reduced by 14.1% but the boiler...
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    In my experience, it is worth getting a simple...

    In my experience, it is worth getting a simple gas usage monitor. I managed to get a NorthQ gas starter kit off EBay last year for £25. In the days when I had Evohome it showed that there was merit...
  7. I hope you are able to sort things out. FWIW,...

    I hope you are able to sort things out. FWIW, after 4 years of Evohome (now no longer as we have moved home), I am not sure that it is a system that I would install in a senior citizen’s home UNLESS...
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    I have moved on from Atag/Evohome/OT. The Atag...

    I have moved on from Atag/Evohome/OT. The Atag ONE controller uses the same Atag boiler EBUS as Evohome OT. The Atag ONE controller requires a 3 port diverter valve. The discussion that I had with my...
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    Thinking about your problem a bit more, I recall...

    Thinking about your problem a bit more, I recall having a lengthy conversation with my installer about the valve configuration needed to work with an Atag boiler. The Atag ONE controller only works...
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    The system that I had in the house that I sold in...

    The system that I had in the house that I sold in July had an ATag is24 with OT control with hot water priority. The normally open CH valve closed whenever there was a HW heating demand. A HW demand...
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    I had one failure with the App that suggested to...

    I had one failure with the App that suggested to me that it was one of the system’s weak links. In fairness to the App, I suspect that I might have been partly to blame as I made two zone changes in...
  12. Sadly, people do believe the extraordinary...

    Sadly, people do believe the extraordinary savings claims made on various manufacturers' websites.
  13. If you have costs/savings of that magnitude then...

    If you have costs/savings of that magnitude then I would respectfully suggest that you have other 'problems' that smart heating controls alone will not address. For Mr and Mrs Average, the savings...
  14. Bearing in mind just how long this thread has...

    Bearing in mind just how long this thread has been going, I have to wonder whether Honeywell has anything up its sleeve in the way of an updated heating control system that has downwards...
  15. I think that you will need to speak to Tado...

    I think that you will need to speak to Tado support as various guides on their website do suggest that any smart TRV can call for system heat. If this is the case, then Tado’s advice is sound. FWIW,...
  16. The good news is that the Drayton TRV4 body...

    The good news is that the Drayton TRV4 body should be 100% compatible with the HR92 without an adapter. In my experience, there is one main reason why the HR92 head lifts off the TRV body: it hasn’t...
  17. Updates - there are a plenty. My DECT phones...

    Updates - there are a plenty. My DECT phones updated last week and there is a firmware upgrade notification for my wifi repeater today.
  18. They recommend their smart plugs: sadly, not very...

    They recommend their smart plugs: sadly, not very useful in the UK. The TRV schedules can also be built and stored in the router GUI. Binding is also a simple button push on the router. I would love...
  19. New Designs Keep on Coming - Fritz!Dect 301 TRVs

    I have used Fritz!Boxes as my modem/router of choice for a number of years. They are expanding into the Smart Heating market:

    https://en.avm.de/products/fritzdect/fritzdect-301/
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    Most of these smart systems do not need an...

    Most of these smart systems do not need an internet connection. They will continue to work provided there is no loss of comms between the various components. That said, the question that I would...
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    Out of curiosity, I populated the GH online...

    Out of curiosity, I populated the GH online configurator and I found, to my surprise, that it was more expensive than Evohome. This was before I had added on the recommended smart plugs.

    This was...
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    Evohome Opentherm control does quite work like...

    Evohome Opentherm control does quite work like that. When there is a HW demand, Evohome will demand c.90C flow from the boiler. This should be limited to TMax Set (or equivalent) in the boiler set up...
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    Your options range from Hive (low cost and simple...

    Your options range from Hive (low cost and simple to install) through to full zoning (Honeywell Evohome, Tado and Drayton Wiser). I suspect that what you are after is the ability to change the...
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    I did ask Honeywell which, if any, of their...

    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...
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    This is the latest piece of research from BRE: ...

    This is the latest piece of research from BRE:


    https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/648337/heating-controls-compensation-tpi-bre.pdf
    ...
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