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Type: Posts; User: davidaj

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    Having just started to fire up the radiators...

    Having just started to fire up the radiators after summer, I've suffered a similar problem where the thread on one of the adapters no longer stops at the end point, and the valve just keeps trying to...
  2. Hi Steve - when you say reinitialised, do you...

    Hi Steve - when you say reinitialised, do you mean "switched it off and on", or something more severe?
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    Weather works fine in the latest iOS app for me.

    Weather works fine in the latest iOS app for me.
  4. Thread: Hcw82

    by davidaj
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    Makes sense. I'm moving to underfloor heating on...

    Makes sense. I'm moving to underfloor heating on the ground floor soon, so will have a few spare HR92s, so was thinking of re-purposing them as room sensors for the underfloor heating. I'm thinking...
  5. Thread: Hcw82

    by davidaj
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    Given an HR92 appears to be the cheapest...

    Given an HR92 appears to be the cheapest "sensor", can this be used without attaching to a radiator to act as the sensor/controller for the room? I'm surprised the HCW82 costs more than an HR92 given...
  6. I've had smart meters installed for a few years...

    I've had smart meters installed for a few years now from First Utility (for free) which give you all this info online, and it passes all the data to First Utilityautomatically who can bill you...
  7. Temperature is not directly mapped to personal...

    Temperature is not directly mapped to personal comfort - in winter you want it warmer (less active, relatively colder outside to inside), in summer you want it cooler (more active, relatively warmer...
  8. Thread: evohome Wi-Fi

    by davidaj
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    In practice I don't recall ever touching the...

    In practice I don't recall ever touching the gateway since it was first installed, yet the controller I've had to restart or mess with several times. The gateway is hardwired into the mains and...
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    Well you either have more unstable conditions...

    Well you either have more unstable conditions than you think, or a fault with your install, or a bug in the device and optimisation is not optimally implemented. Turning it off removes a major energy...
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    You should really just ignore that suggestion and...

    You should really just ignore that suggestion and read what I said - that is precisely the implementation required for max energy saving, a key purpose of evohome! The principle is "Only come on when...
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    If you have reasonably stable conditions then...

    If you have reasonably stable conditions then optimisation should be able to work accurately. If you have wildly varying conditions then optimisation will be unable to calculate when to switch on...
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    Just like the heating, you should be able to...

    Just like the heating, you should be able to state for example "At 7am I want the hot water to be 55C". So this means the boiler needs to fire up at say 6.45am to get it to 55C by 7am. In the...
  13. Thread: evohome Wi-Fi

    by davidaj
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    No offence Paul, but with that outlook we'd all...

    No offence Paul, but with that outlook we'd all still be lighting fires and using chalk and slate ;)

    My suggestion earlier was to add an option to choose the behaviour during config - that's the...
  14. Thread: evohome Wi-Fi

    by davidaj
    Replies
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    74,012

    The HR92 acting as the sensor for the room/zone...

    The HR92 acting as the sensor for the room/zone *should* behave just like a Y87RF or DT92E - they are all sensors. In practice it only overrides itself. My opening statement on this was to counter...
  15. Thread: evohome Wi-Fi

    by davidaj
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    Not sure it is - if you change the "master"...

    Not sure it is - if you change the "master" sensor in a single zone it will update all HR92s in that zone (multi zone will not). The master sensor could be an HR92 or dedicated sensor like a Y87. If...
  16. Thread: evohome Wi-Fi

    by davidaj
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    Actually, when you set up the zone, I recall that...

    Actually, when you set up the zone, I recall that you choose whether it is multi-room or not, so in the case of not being a multi-room zone, then changing a single HR92 should affect all the rads in...
  17. Thread: evohome Wi-Fi

    by davidaj
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    We'll have to agree to disagree on this one -...

    We'll have to agree to disagree on this one - each area I want individual control over is a separate zone. As it stands, if my "guest bedroom" has two or more radiators, then I need to adjust all...
  18. Thread: evohome Wi-Fi

    by davidaj
    Replies
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    74,012

    It's not really logical - if multiple HR92s are...

    It's not really logical - if multiple HR92s are part of a zone, changing one of them should affect the zone, not just the single radiator - now that is logical! Hence if that logic was employed, you...
  19. Thread: evohome Wi-Fi

    by davidaj
    Replies
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    74,012

    But the gateway needs to be updated too, so...

    But the gateway needs to be updated too, so nothing beyond what is already possible can be added in the app without Honeywell updating the gateway firmware to open this up. Given the gateway is...
  20. Thread: evohome Wi-Fi

    by davidaj
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    It would be very easy for the app to deduce...

    It would be very easy for the app to deduce whether it needs to route the request via the internet or directly communicate to the gateway, either by looking for it on the network (if away from home...
  21. Thread: evohome Wi-Fi

    by davidaj
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    I know and I never said it did. An enhanced...

    I know and I never said it did.

    An enhanced app and enhanced software in the internet gateway (which does use 868MHz) is all you really need, with optional ability for the app to connect to local...
  22. Thread: evohome Wi-Fi

    by davidaj
    Replies
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    74,012

    From a hardware perspective, to all the other...

    From a hardware perspective, to all the other evohome components which actually turn things on and off, all the controller is doing to communicate with them is send data on a special frequency, the...
  23. Thread: evohome Wi-Fi

    by davidaj
    Replies
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    74,012

    I agree that finding your phone, unlocking etc is...

    I agree that finding your phone, unlocking etc is a pain, but that is not what I'm suggesting. You have a separate, dedicated device, always unlocked, app always open. The more "automated" your home...
  24. Thread: evohome Wi-Fi

    by davidaj
    Replies
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    My point is just that if you want the new...

    My point is just that if you want the new features, for the price of the new controller you can get an iOS/Android device, so if the app was improved to support the new features I'd rather do this...
  25. Thread: evohome Wi-Fi

    by davidaj
    Replies
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    74,012

    Mavis - my suggestion was really that you buy a...

    Mavis - my suggestion was really that you buy a separate iOS or Android device purely dedicated to evohome, then imagine that on your shelf with the app permanently open instead of the evohome...
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