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Last seen: Sep 7, 2026
@jamespa - an interesting chart, it shows the method working for a large fossil fuel data set. I suspect if you cleaned up the data a bit, you might g...
But in an elevator?
Which is why I have tried plotting 24 hour periods rather hourly periods, and sure enough the correlation does appear to be very good, remarkably good...
@jamespa - you know I do! You can't have forgotten the many discussions we and others have had about it, some of which have got rather warm on occasio...
Energy input (used, consumed) you have, it's what your meter says it is, and you just total it for each day (or subtract previous reading from current...
Given this, and the fact you seem to have a fairly good consensus based assessment of your total heat loss, can you do what I did, that is find a peri...
My suggestion is the heating is always on (on the timer) during any heat loss assessment exercise, set to a constant IAT, the only on/off activity wil...
@majordennisbloodnok - interesting questions that I don't know the answer to, but the thinking behind them is the same line of thinking I had when I w...
Interesting (and a splodge is another example of what I recently called monkey plots). I wonder if the hourly plots fail because your system is very v...
It means what it says, but if you want a rewording it might be 'not for the first time the data is messy (incomplete, haywire values at extreme ends o...
Here we go again, messy data making monkey plots! What I have, and can and can't do: (1) minute by minute recorded data for all variables of interes...
@jamespa - thanks. I was reading something on that website as you posted on how degree days are calculated. It seems the preferred method integrates t...
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@jamespa Thanks, you are right. I needed to look at ...
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This is the point that I was getting at earlier, when y...
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Thanks, @batpred. That integration is the one I have in...
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RE: Surface mount or bury primaries for heat pump installation?
@jamespa It's rusting 🙂
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Thank you, once again, for your replies. Yes...
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Yes, and this is another point I agree. We did find a f...
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