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Type: Posts; User: blowlamp

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  1. Replies
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    Yes, a 900mm wide radiator with a pair of these ...

    Yes, a 900mm wide radiator with a pair of these to get the right fit.
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    Anything suitable here...

    Anything suitable here?
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    Why don't you get some bigger radiators fitted?...

    Why don't you get some bigger radiators fitted? It sounds like it would help with the constant boiler cycling and give you a warmer home too.
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    The Intergas Xclusive and Xtreme models modulate...

    The Intergas Xclusive and Xtreme models modulate down to ~ 3.5 kW.

    OpenTherm is a two-way comms protocol that can control many boiler functions. If you want to closely control CH flow temperature...
  5. I don't think it's boiler manufacturers that...

    I don't think it's boiler manufacturers that can't be bothered to implement a maximum flow temperature message, I think it's just the case that it makes more sense to have the whole heating...
  6. What you're talking about in the part I've...

    What you're talking about in the part I've highlighted only applies to systems equiped with on/off thermostats, but not OpenTherm systems, because, an Intergas boiler (and most others) connected to...
  7. The article linked to at the start of this thread...

    The article linked to at the start of this thread has some incorrect information in it that I have applied bold text to below.

    Evohome Article:

    I was frustrated that both the Intergas HRE SB...
  8. This is the wrong conclusion as far as I'm...

    This is the wrong conclusion as far as I'm concerned.

    As I've pointed out on a few occasions, connecting a more fully featured OpenTherm thermostat to a weather compensated Intergas boiler means...
  9. That's true, but I think real life use has shown...

    That's true, but I think real life use has shown they made a mistake in their specs.

    As a flagship product there should be enough OpenTherm options available to provide a thorough rather than...
  10. This function should always have been available...

    This function should always have been available with an Evohome/OpenTherm setup.
  11. Would fitting these diodes result in an increase...

    Would fitting these diodes result in an increase in battery life by any chance?
  12. 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.
  13. 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...
  14. 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...
  15. 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...
  16. 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...
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