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Last seen: Oct 27, 2026
Sorry but that sort of says it all. On another forum that I dip into the Grant/Chofu unit gets a generally good review, although most seem to recomme...
The setup is design specific and a starting point should be the design flow temp at the desing min temp, but I guess you dont have these (or they were...
Sounds to me like an instant 10% penalty in efficiency, or more, for little tangible gain. Unless its properly controlled there will be mixing, which...
OK step by step. The bad news us that your installer is that clearly either ignorant about heat pumps or a cowboy or both. The good news is that you...
There have been some cold days recently so on those you would expect low cop. However operating at a fixed flow temp of 60C is sheer madness and will...
Is it a volumiser (2 ports) or a low loss header (4 ports). The latter can be a bit of a disaster if setup incorrectly, which is probably more likely ...
No offence intended, the comments were meant simply to reflect the facts that: 1. when developing a model for a class of system, its often a good id...
At this stage I will very happily settle for the same to within a factor of 2, given that they are from two completely independent approaches based on...
Thanks for the data health warning. I was struck by just how much difference adjusting for change in IAT made to the degree of correlation (have a lo...
The data should be capable of telling us the amount of energy contributed by other sources, it should appear as an intercept in the correlation curve,...
Thanks. I think your adjustment has the effect of moving the curve up or down, and mine the effect of changing the distribution. They are thus diffe...
Can you clarify whether this was composed after or before my post at 10.05. I have the impression before, but I could be wrong. Essentially my 10.05...
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