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Type: Posts; User: MJNewton

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  1. Was this through observation? I would expect the...

    Was this through observation? I would expect the opposite. The boiler should be trying to maintain the set target temperature and whether it's tracking the flow, return or both if the return...
  2. It is usual practice to measure the pipes or...

    It is usual practice to measure the pipes or valve tails, not the radiator itself, in order to ensure consistency. It is after all the flow and return temperatures you are trying to measure. Paint is...
  3. Yes, useful tools to have. I see that if you're...

    Yes, useful tools to have. I see that if you're an Octopus energy customer you can borrow them which is a great idea/service (for free too I think!).
  4. Note that you can't reliably read the temperature...

    Note that you can't reliably read the temperature of a metallic (reflective) surface with an IR sensor as its emissivity will be way short of (and lacking consistency with) the near-perfect body that...
  5. Just a minor correction to make to what is a...

    Just a minor correction to make to what is a great post: problematic valves (whether unidirectional or some bidirectional as you say) should be fitted on the *flow* side whenever possible. The reason...
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    To close this one off: I got in touch with...

    To close this one off: I got in touch with Honeywell to enquire about about obtaining replacement terminal blocks and, to be honest, wasn't expecting a reply about what is essentially a 'low level'...
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    Replacement Honeywell terminal blocks?

    This is a long shot... almost worth not typing but you never know!

    I've just bought a Honeywell T6 smart thermostat - sold as 'untested; spares or repair' and I can see why! The receiver doesn't...
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    Sorry kevinsmart; I missed this reply. Funny you...

    Sorry kevinsmart; I missed this reply. Funny you should mention it staying off for too long - I've sometimes thought similar with mine (v3).... There's no pleasing me is there! ;-)

    Re Opentherm,...
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    Honeywell TR6 and API Access

    I am considering buying a Honeywell T6R and wondered if anyone that's got one (or otherwise is in the know) can confirm if there's an API one can use to read the current temperature measured by the...
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    I think you might be mixing up two aspects within...

    I think you might be mixing up two aspects within True Radiant? Google uses the term to cover not just the TPI element but also what others call Optimum Start.



    That's exactly what my Nest does...
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    I forgot to ask: what do you have now? Evohome? I...

    I forgot to ask: what do you have now? Evohome? I actually thought this was an Evohome forum when I first arrived as it seems to attract the lion's share of discussion.
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    Can you expand on that? How else could TPI work...

    Can you expand on that? How else could TPI work if it's not pulse-width control? Nest describes itself as a Class IV thermostat and hence 'An electronic room thermostat that controls both thermostat...
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    Are you sure? The plots definitely show clear...

    Are you sure? The plots definitely show clear improvements in stability over time so I'm wondering what else it could be?

    http://www.newtonnet.co.uk/permanent/preandpostnest-longview.png
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    Just to follow up on this for the sake of the...

    Just to follow up on this for the sake of the archives (although the lack of responses suggests it's only me that's had an issue!) I've found that the Nest's control of the temperature has improved...
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    Accuracy of Nest TPI control?

    Hi everyone,

    My first post here, although I've been reading with fascination many of the threads in the archive.

    For many years I've been using a Honeywell CM927 thermostat that has managed...
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