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cathodeRay
cathodeRay
@cathoderay
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Joined: Feb 28, 2022
Last seen: Jul 21, 2025
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Topics: 17 / Replies: 2064
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RE: Do setbacks save energy without compromising comfort?

Yes, we are saying the same thing here using different words. I said "steady average IAT (ie no net energy gain/loss over time)", average being over 2...

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

I agree. In medicine (as elsewhere), we call it N=1. It's a single case report, an anecdote. The next step up is a case series (maybe N=10 or somethin...

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

@derek-m - it seems the quotes/new comment in your post have got mixed up, making it hard to follow. I think you rather than I wrote: "So how do you...

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

I am sure the first point is correct, but the second relies on the correct inclusion and processing of the many variables. As I have said before, I do...

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

I agree with most of the points, but the 1.18 factor is there, as the average difference between the Midea volts x amps value and the external kWh met...

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

The two charts together are intended to compare the energy in predictions from your model (upper chart) and my regression equation (lower chart) again...

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

We are in effect using the same method, observed with setback vs expected without setback. The general method of comparing observed vs expected is wid...

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

Couldn't resist one final peek...and this really is the last one, just to, I hope, clear this up: Exactly, they compare observed with setback aga...

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

@jamespa - thanks. We cross posted - as I said, I'll be back on the case before too long!

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

@derek-m - thanks, and I agree, images can convey a lot of information that our human brains can take in very easily. The two charts compare the act...

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

All the calculations (formulas) are in the python scripts, the raw data file is a csv file and so can't contain formulas. There are two scripts, the m...

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

I'm posting these charts for discussion, not as a conclusion. They have not been easy to produce. I wanted to get all the data on one chart, but it en...

2 years ago
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Air Source Heat Pumps (ASHPs)
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