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  1. Would fitting these diodes result in an increase...

    Would fitting these diodes result in an increase in battery life by any chance?
  2. As you have a plinth heater then you don't need...

    As you have a plinth heater then you don't need an ABV, because the plinth heater circuit is alway open due to its lack of any control valve.
  3. There's no problem at all with having OpenTherm...

    There's no problem at all with having OpenTherm and weather compensation operating together. Our Intergas boiler has both these features and they can be used together or separately at will.

    If...
  4. The protocol itself seems pretty good, it's...

    The protocol itself seems pretty good, it's mainly what's specified as being optional where problems arise.
    Put bluntly, shouldn't it be obvious that any OpenTherm controller must be capable of...
  5. Someone made the wrong judgment about what was...

    Someone made the wrong judgment about what was optional in Evohome OpenTherm. Once under OpenTherm control the Viessmann expects to be controlled by Evohome and when it isn't it defaults to maximum...
  6. It's stupid that it's optional as it turns out in...

    It's stupid that it's optional as it turns out in practice to be vital for correct operation.
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    If you say the introduction of a spacer has no...

    If you say the introduction of a spacer has no effect because the HR92 just re-adapts back, then I wonder if the soft rubber seal is the main problem with this setup.

    If you need to open a valve...
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    It seems logical to me to have valve bodies that...

    It seems logical to me to have valve bodies that have hard rubber washers that give low hysteresis to the TRV (HR92 in this case) to work with. It's counter productive to have a large, undetermined %...
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    Lockshield (balancing) valves are usually only...

    Lockshield (balancing) valves are usually only just 'cracked open' by 1/4 - 1/2 a turn or so to allow sufficient water flow, which must equate to a lifting of less than 1mm of the valve off its seat...
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    Maybe you could cut up some old credit cards to...

    Maybe you could cut up some old credit cards to test the idea? I tried thick card with pretty good results and apart from the initial compression, they bedded down nice and firm with no further...
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    Let me start by saying that I don't have any of...

    Let me start by saying that I don't have any of the Honeywell products you have in my own system. :)

    I've got Tower radiator valve bodies, which are fitted with Peggler I-Temp controllers.

    Once...
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    Evohome's narrow modulation band under OpenTherm...

    Evohome's narrow modulation band under OpenTherm control was mistakenly reported as a fault with Intergas boilers. It just turned out that the odds for a multi-zone Evohome setup requesting full...
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    I think Intergas spares can be had from Plumb...

    I think Intergas spares can be had from Plumb Centre and the like, but any decent Intergas installer should carry a good range of parts.

    I'd say that rather than worry about the pump failing,...
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    Veissmann hoses https://youtu.be/QC8KGBzWZw8

    Veissmann hoses
    https://youtu.be/QC8KGBzWZw8
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    No contest in my opinion. Intergas are built...

    No contest in my opinion.

    Intergas are built like no other -
    https://youtu.be/3--_1SvshvQ
    Does Veissmann still have rubber hoses to and from the heat exchanger?
    The intergas would be simple to...
  16. OpenTherm is a 2-way communication...

    OpenTherm is a 2-way communication protocol/language, rather than a feedback system, as far as I am aware. OpenTherm's utility depends on how many words from its 'dictionary' are understood by the...
  17. Thanks for your reply, DBMandrake. I’m giving...

    Thanks for your reply, DBMandrake.

    I’m giving details of my setup that you may already be aware of in the hope they might be of use to you & others

    My system is an Intergas boiler with Remeha...
  18. Could you expand a little on what you mean by...

    Could you expand a little on what you mean by this please?


    Martin.
  19. Weather compensation puts an upper limit on the...

    Weather compensation puts an upper limit on the flow temperature in relation to the current outdoor temperature and how the system is setup for the building. If Evohome were to use this feature, then...
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    Our mid 1950s detached house has an exterior...

    Our mid 1950s detached house has an exterior curved tiled bay between the ground floor and first floor. Like you, we used to have days where the house just didn't feel warm and that seemed to...
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    Agreed, 'flooring the pedal' until it gets to the...

    Agreed, 'flooring the pedal' until it gets to the 1.5c proportional band is an unnecessary approach and isn't what my Remeha iSense controller does.
  22. I didn't know the Lyric could display the...

    I didn't know the Lyric could display the requested flow temperature as I've not noticed it when playing with the inlaws Lyric/Intergas setup.
    Their heating system seems to work OK, but as it's more...
  23. Why would the folks at Ideal offer to buy you a...

    Why would the folks at Ideal offer to buy you a controller of your choice if they weren't confident of it fixing the problem?
    I'd take them up on it. :D
  24. Accept their offer of a new controller - maybe a...

    Accept their offer of a new controller - maybe a Nest v3? If the problem is cured then at least you know the boiler is capable of firing from a low flame and isn't down to the boiler software being...
  25. I think the idea is to get the house nominally up...

    I think the idea is to get the house nominally up to temperature as quickly as possible.
    Does your system modulate properly once it's close to its setpoint?
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