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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Aug 15, 2025
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Topics: 17 / Replies: 2075
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RE: Installing a heat pump in a Grade II listed property

@toodles - that plot looks like it is a plotly plot (from the icons visible in the top right corner), which is what I use, but the legend is rather bu...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

@toodles - I am inclined to agree, but the plot of what Midea call the ambient temperature does show changes in temperature as the heat pump goes on a...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

Just an update to say @jamespa and I are still working on this, waiting for data to accumulate. In particular, we are waiting for data from an indepen...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Jokes and fun posts about heat pumps and renewables

Reminds me of one of my all time favourite real world headines after a Scottish football match:

10 months ago
Forum
Well & Truly Off The Grid
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RE: Installing a heat pump in a Grade II listed property

@judith - as @jamespa says, my Midea unit has its OAT (Midea call it 'Outdoor ambient temperature' which originally I thought meant what it said) sens...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

@jamespa - first to deal with the point I raised in @bontwoody's thread - the flow rate drops to zero at the start of the setback and stays that way u...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: My horrific Samsung heat pump installation and experience

@iantelescope - I'm sorry, but this is gobbledygook to me. You need to use plainer English, and explain your methods in enough details to allow others...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is my setback/preheat doing any good?

I see what you mean, interesting. It is amazing what we can learn from detailed charts.

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is my setback/preheat doing any good?

It's the initial precipitous fall in LWT that I'm curious about, blue arrow points to it here: The rest of the decline over time is what I would ...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

This is why I mentioned epidemiological observational studies, you have no control over the variables whatsoever. The main way you deal with that nowa...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Is my setback/preheat doing any good?

@bontwoody - thanks for the replies. Inline probes should be accurate, but at the same time such a precipitous drop seems most unlikely, given the...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
Reply
RE: Installing a heat pump in a Grade II listed property

@jamespa - I suspected all along the answer might be 42. Now we have the answer, we can now work out the question, and I think you have phrased it w...

10 months ago
Forum
Air Source Heat Pumps (ASHPs)
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