Last seen: Sep 19, 2024
It would appear that I am not making myself clear. Could you please identify the day within your data when the OAT was at its lowest extreme and the...
@editor It is claimed that a condensing gas boiler should be in the region of 90% efficient, so dividing your Energy Out figure by 0.9 should provid...
You obviously misunderstood my post. The 'specified operating parameters' that James was kind enough to suggest, were that the IAT should be within 0....
The Laws of Physics would indicate that reducing the IAT by 1C should reduce electrical energy consumption by approximately 10%, so reducing IAT using...
@cathoderay Please correct me if I am wrong, but are there are now 3 versions of the y= formula. So which is correct? I suppose the 'acid test' is...
Thanks for carrying out such useful testing. It would be interesting to see what happened with IAT and COP during the above tests.
Have you tried e-mailing? That way you would have a dated record.
I suspect that you are indeed correct, if the heat loss, and hence heating demand, is less than the minimum thermal energy output of the heat pump, th...
Can you confirm, was the heat pump running almost continuously at 29C LWT when cold and cycling when operating at 27C in milder weather?
@jamespa I ran the latest data, well the 4th of Nov bit, through my spreadsheet, which actually predicted electrical energy in to be lower than the ...
Maybe it would have been better if you had checked the quality of the data before posting.
@cathoderay You still did not explain why, if your method is correct, the values that should have been the same on the 4th Nov. were not the same th...
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