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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Jul 12, 2025
Topics: 17 / Replies: 2064
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RE: ÀSHP heat loss - how close to perfect can we get?

Juxtaposing those two could lead to interesting results... Seriously though, I think the following, which are not a million miles at all from your s...

9 months ago
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RE: ÀSHP heat loss - how close to perfect can we get?

In fairness, I didn't say he said whatiffery fails, it is me who said whatiffery fails. I am deliberately plugging this point because as frequent read...

9 months ago
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RE: ÀSHP heat loss - how close to perfect can we get?

In fairness, this is what I have been saying for some considerable time. It is why whatiffery fails. Using crass numbers eg stone wall U values doesn'...

9 months ago
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RE: ÀSHP heat loss - how close to perfect can we get?

I have noticed that as well as solar gain, my house also gets wind chill on wet windy days, especially if the wind is in the wrong quarter. Yet, so fa...

9 months ago
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RE: ÀSHP heat loss - how close to perfect can we get?

@larry - I have now read the SPAB U value report in full, and it makes interesting reading, despite in places getting tangled up in putting up a basec...

9 months ago
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RE: System pressure dropping on my Ecodan ASHP system

@spacebiscuit - this is an interesting question, why does an ASHP circuit need to be pressurised in the first place? I can't be, as it is with a tradi...

9 months ago
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RE: ÀSHP heat loss - how close to perfect can we get?

Very good to have your experience and expertise here, I am sure you have much to offer which I am sure others will welcome. Thanks too for the U Va...

9 months ago
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RE: ÀSHP heat loss - how close to perfect can we get?

Thanks, that's useful to know. I'll see what I can dig up. I guess that may mean you are an installer (which is fine - all are welcome here!)? Bu...

9 months ago
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RE: ÀSHP heat loss - how close to perfect can we get?

Any talk of 'mandatory' starts the hairs on the back of my neck rising. In close proximity to any mention of MCS, a discredited bunch of goons and sto...

9 months ago
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RE: Simulation of ASHP with Gas boiler as part of decision process

@toodles - we are, but back to basic principles: if two independent data sources agree, or are close, then that does generally suggest that both are a...

9 months ago
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RE: Simulation of ASHP with Gas boiler as part of decision process

I don't think, for my system, it is too bad, because I have some basic independent monitoring tools, and they broadly agree with the Midea data collec...

9 months ago
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RE: Simulation of ASHP with Gas boiler as part of decision process

That is certainly possible for the pipework, though the radiators are matched, plus a bit, to the 12kW heat loss, ie they are unlikely to be a bottlen...

9 months ago
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