Last seen: Sep 20, 2025
As I'm sure you know the mean of a sample (which is what we are looking at) of a normally distributed population may differ from the population mean. ...
@cathoderay Prima facie this looks very interesting and a good fit once changes in the system are excluded, as you have done. Can you tell us what t...
Thinking more about the above, its all a matter of degree. You choose to compensate for OAT by using a model, but you choose not to compensate for IA...
@derek-m @cathoderay until we get to the bottom of this and either explain it or conclude that i have goofed in my analysis I really don't think its w...
@derek-m @cathoderay until we get to the bottom of this and either explain it or conclude that i have goofed in my analysis I really don't think its w...
I quite often get database errors recently and have taken to copying text to the clipboard before pressing 'add reply' to ensure I dont have to retype...
Thanks for the responses. I don't think it has a fatal flaw in principle, although omitting to take into account IAT means that you will need...
@cathoderay From your Obs vs Exp worksheet here is a pivot of actual and expected for the whole of the heating season (I omitted the days when the hea...
Thanks I agree that the less processing the better. I used noon to noon data only because that's what you had previously quoted in your posts. Its...
The technique is certainly valid and should give a very similar answer to the technique of comparing the two distributions, provided the necessary cor...
That's most helpful thanks, and as you say we don't really need to know exactly the energy consumption of the pump if its already included.
We can look at the specifications of typical circulating pumps. Here is a common one, 60W = 1.4kWh/day assuming its operating at max (which most circ...
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