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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Oct 21, 2026
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Topics: 18 / Replies: 3075
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RE: Do setbacks save energy without compromising comfort?

It's actually left or right, because we have the axes the other way round, I put degree minutes on the x axis as to my mind it is the predictor variab...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

During, in effect we cross-posted, your post appearing first, but I didn't see it until after i had posted. Also note the typo correction.

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@jamespa - interesting! I have made a small change, changed the degree minute calculation from (IAT -OAT) to (baseline - OAT) with a baseline of 15.5,...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

@jamespa - and here's the data:

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Can and will do. I'll post the minute data for the last two weeks shortly. The calculations I have explained before but I expect that signal may have ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Optimising ecodan ASHP

There certainly are discrepancies, but I am fortunate that for the energy in I can measure them, as I have an external heat pump dedicated kWh meter. ...

3 years ago
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Air Source Heat Pumps (ASHPs)
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RE: Optimising ecodan ASHP

For sure, that is the gold standard, but you can get some Ecodan data, see posts by @kev-m, though obviously it comes, like my data from a Midea unit,...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

I do have the data, as you know, all you have to do is ask! According to my Mark 1 Eyeball Aggregator, the IAT was on average about one degree less ...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Sorry if you were confused, it is entirely my fault, I was looking at one image (last week) and had posted another (last 48 hours). The last week look...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Optimising ecodan ASHP

I can't answer all of your questions but here goes for some of them: (1) I am not sure which delta you are referring to - rad to room or LWT/RWT. Th...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

The chart was in my previous post two above the last one, but the website pagination has put it on a previous page. Here it is again: ***edit:...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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RE: Do setbacks save energy without compromising comfort?

Do setbacks save energy without compromising comfort? The original question... Given the above chart ***edit: this is not the image I meant, see bel...

3 years ago
Forum
Air Source Heat Pumps (ASHPs)
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