Last seen: Aug 15, 2025
I think there is at least one thing that isn't right in that chart, the sudden precipitous drop in flow temp when the heat pump turns off. That doesn'...
@iwolf - on my installation there are two flexible connectors connecting the heat pump flow and return to the fixed pipework where it passes through t...
It does correlate well already, at least the OAT/energy out are well correlated, that's the basis of the empirical method of determining heat loss. It...
@paul436 - thanks, that would appear to confirm what i thought.
Not sure, but I think that may be the inline filter by the heat pump is blocked. Mine has a quarter turn valve to close of the pipework, and then you ...
@jamespa - this all sounds do-able, and I agree it is worth a try. To cover your various points: The heating was always on (with or without setback,...
I do already have a lot of data. Since late March 2023, I have been collecting data at minute intervals for all of the variables you mention, apart fr...
Thank you, it is. Your second paragraph also covers something I had been thinking about as well, the situation where a true but small inter-sample dif...
I wasn't looking for correlation, just gross eyeball differences between SB and no SB running. As I said, I can't think of any other way of presenting...
At least the ceiling got plastered, not me! Make of this quick and dirty analysis what you will. Actually, it wasn't that quick, because it involved...
@jamespa - thanks, will get back to this later, I am about to get stuck in to some ceiling repairs!
It does vary. Here is the chart again: On this chart it is more often 2-3 degrees. You can also the the warming caused by the heat pump turning of...
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