Last seen: Sep 15, 2025
You have a house with an enviously low loss and able to run at an enviously low flow temperature (29C!). I wish mine was like that! At a flow tempe...
Interesting data. Assuming a difference between the intake air sensor and the actual OAT of 2C, and that 600W is contributed from sources other than...
I would say for sure assuming it connects to the heat pump controller.
Many, if not most/all, ASHPs have their own tank sensor. Unlike the immersion thermostat it is analog not on/off so that the ASHP knows the actual te...
Good luck and no rush. Any new measurements that are made will be easier to interpret when it gets colder anyway.
AIT (air intake temperature) and energy will correlate well whatever the IAT is not least because the heat pump controller reacts to AIT alone and the...
Unless the IAT was in fact 19 when you did the energy vs OAT curve, we need to correct for that!
It looked bigger on the charts you posted recently, perhaps more like 2-3 C The difference does make a fair difference to some of the calculations p...
This confuses me. Do I correctly recall that your heat pump (and more importantly OAT sensor) is in a bit of a well so the OAT sensor doesn't measure...
Can you please clarify what this graph is, it appears to have both setback and no setback on the same days? Also when you did the AUC calculation re...
Yes and Yes. Conservation of energy must eventually apply, but may take a long while for equilibrium to be re-attained, and my suspiscion is that in ...
The '10%' refers to the change in deltaT between IAT (20C->19C) and OAT (10C). House loss (which is how the '10%' is being used) is proportional ...
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