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cathodeRay
cathodeRay
@cathoderay
Moderator
Famed Member
Joined: Feb 28, 2022
Last seen: Jul 13, 2026
Topics: 18 / Replies: 2932
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RE: Setback savings - fact or fiction?

@peterwurmsdobler — thank you for your positive comments. You are certainly taking a diligent and sensible approach to assessing your own needs. The...

2 months ago
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RE: Setback savings - fact or fiction?

@jamespa — as a taster, which may in fact already have given us the answer, here is the plot for the whole dataset (no setback/no setback sub sets) fo...

2 months ago
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RE: Setback savings - fact or fiction?

The mean (over the entire range of values) difference is only 20.57 - 19.28 = 1.29°C. At lower OATs this does indeed increase, as the drop in IAT duri...

2 months ago
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RE: Setback savings - fact or fiction?

I do lean to the idea that the main way setbacks save energy is by lowering the daily mean IAT. With careful timing, my setbacks start at 2100 which i...

2 months ago
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RE: Setback savings - fact or fiction?

And finally, the mean daily IAT against mean daily OAT plots. I have broken my 'Y axis must start at zero' rule because on this occasion is may make s...

2 months ago
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RE: Setback savings - fact or fiction?

Meanwhile, I have done the residual plots for the analysis. These are somewhat technical, but in general terms, these plots indicate whether it is rea...

2 months ago
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RE: Setback savings - fact or fiction?

First plot done. Initially I missed the discrete minus sign before the 100 that changes the sign of the percentage differences, but it is inluded in t...

2 months ago
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RE: Setback savings - fact or fiction?

It does, see above, getting it (and making sure it made sense) was not so simple! It's just an earlier version of the same standard daily energy ...

2 months ago
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RE: Setback savings - fact or fiction?

I now have regression equations that make sense:     For OAT = 6°C: > 79.8-(8.29*6)+(0.237*36)[1] 38.592> 91.3-(9.55*6)+(0.2...

2 months ago
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RE: Setback savings - fact or fiction?

This could quickly become complex! The data points are real observed values, each one representing a 24 hour noon to noon period, with the 24 hour ene...

2 months ago
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