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A comment on Ask HN: What do you do with your Raspberry Pi?. Parent comment

Re:Ask HN: What do you do with your Raspberry Pi? by ip26 on Tuesday June 25, 2019 @01:18PM (#20276509)
How does the data benchmark the HVAC? Or are you actually combining weather + HVAC data to benchmark the home envelope (e.g. insulation)?
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Re:Ask HN: What do you do with your Raspberry Pi? by sparker72678 on Tuesday June 25, 2019 @01:30PM (#20276645)
Good question.

I'm really benchmarking the system against itself, year on year, by comparing the weather outside vs. performance (output temperature of the HVAC unit, average temperature inside the house).

I'm not trying to find an objective efficiency rating so much as monitor performance over time to see if it's changing.

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Re:Ask HN: What do you do with your Raspberry Pi? by ip26 on Tuesday June 25, 2019 @05:15PM (#20279030)
I see, I guess I didn't even consider the performance might meaningfully fluctuate.
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