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  1. "Usual practice" perhaps, but that assumes you...

    "Usual practice" perhaps, but that assumes you are trying to adjust the balancing of the radiators to produce a certain temperature differential across each radiator. This is indeed the traditional...
  2. Yes this is exactly what happened to me when I...

    Yes this is exactly what happened to me when I tried to use the variable speed modes on my pump - all three variable modes were completely useless on my system because the pump would slow right down...
  3. Your point about reflective metallic surfaces is...

    Your point about reflective metallic surfaces is correct, however most modern radiators are painted and therefore don't have reflective metallic surfaces... Paint makes a good black body radiator and...
  4. You're right - depending on the orientation of...

    You're right - depending on the orientation of the valve. An old unidirectional valve should always be fitted so that the flow follows the direction of the arrow. This could be on the flow or return...
  5. Are there any long runs of pipe with no...

    Are there any long runs of pipe with no mechanical support, long enough to allow a resonance to occur? If so perhaps some additional support brackets would help.
  6. It's not that difficult but it is very time...

    It's not that difficult but it is very time consuming. But if you're willing to do it yourself it can be done over a couple of days in amongst other activities... I did my 9 radiator system in a day,...
  7. Sounds like the system just hasn't been balanced...

    Sounds like the system just hasn't been balanced properly, if at all. Regardless of the convoluted pipe run for those radiators, provided they heat up normally when they are the only radiators in use...
  8. Could be related to this: ...

    Could be related to this:

    https://www.automatedhome.co.uk/vbulletin/showthread.php?6419-Has-quot-Eco-quot-mode-been-broken

    Are you using the Eco button on the DTS92 by itself, or is system wide...
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    Yes, this is a known bug of the new firmware. I...

    Yes, this is a known bug of the new firmware. I noticed it and pointed it out to the Honeywell guys during the beta period in this post:
    ...
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    Lots of discussion threads on here about this to...

    Lots of discussion threads on here about this to read through if you have a browse...

    But in summary, the sensor in the HR92 will always read a bit higher than the room temperature (by 1-2C is...
  11. Don't use non-rechargeable batteries (Alkaline or...

    Don't use non-rechargeable batteries (Alkaline or Lithium) in the Evotouch. Definitely not when it is on the mount as it will try to charge them, and even if you took them out before putting them on...
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    Only 1.5C error? Try 4-5 degrees for me. :) (At...

    Only 1.5C error? Try 4-5 degrees for me. :) (At times when the temperature is rapidly increasing or decreasing - eg morning and evening with clear skies)
  13. Can't speak for the HCF82 but the HR92 doesn't...

    Can't speak for the HCF82 but the HR92 doesn't use a discrete bead of any sort, it uses a temperature measurement chip with a built in sensor.
  14. I'm not sure what you're planning to do with it...

    I'm not sure what you're planning to do with it as a "floor sensor" - do you mean a sensor to measure the water temperature of wet underfloor heating or element temperature of electric under floor...
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    Welcome to the world of antiquated RF protocols...

    Welcome to the world of antiquated RF protocols which don't use acknowledgements to confirm that the target device actually received a message... ;)

    In short, the BDR91 continuing to cycle on for...
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    After 5 years of using Evohome I have my first 62...

    After 5 years of using Evohome I have my first 62 degree phantom zone in the iPhone app... :P

    I haven't touched a thing either - it's just appeared for no apparent reason. Haven't got around to...
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    Looks good but also looks like a lot of work! ...

    Looks good but also looks like a lot of work!

    Lets hope you don't need to do a warranty claim on that HR92 - I think the reseller would not be amused... :D
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    Probably lost in translation... :D

    Probably lost in translation... :D
  19. I've had a few failed zone change warnings myself...

    I've had a few failed zone change warnings myself recently via the Alexa integration.

    I have an Alexa Goodnight routine which turns off various lights and performs individual zone overrides for...
  20. 66% is definitely the HR92 trying to call for...

    66% is definitely the HR92 trying to call for heat.

    Unfortunately the battery contacts are a weak point in the HR92 design - I've had to tighten the contacts on all of mine at some point, some...
  21. Lots of points buried in there so I have a few...

    Lots of points buried in there so I have a few questions:

    I assume you have the HR92 set to display measured temperature rather than the set point?

    How are you determining the valve hasn't...
  22. We have two one year old radiators in the dining...

    We have two one year old radiators in the dining room that I installed when the room was renovated, a 4 year old radiator in the bathroom that I installed (which is already going rusty at the bottom...
  23. The thread is moot now anyway. The guy came out...

    The thread is moot now anyway. The guy came out to do the site survey and asked a few basic questions and quickly discovered that were weren't in fact eligible for the grant and was on his way. Seems...
  24. "solution for the variable target flows"? I hope...

    "solution for the variable target flows"? I hope you don't mean by using an OpenTherm monitor?
  25. If your boiler is leaving rooms at 3 degrees...

    If your boiler is leaving rooms at 3 degrees below their set points with a 40% TPI duty cycle then I'm pretty sure that your boiler is struggling to put out enough heat for the number of radiators...
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