Not bad for second shortest day

[dhaslam]

6566 watts output this morning.   I think it does exaggerate a little at higher outputs  but even so  it is quite impressive.

Fairly scary temperatures  outside in a year that is supposed to be the third warmest on record.

[desperate]

DHaslam

Had you just run a bath when you took that piccy, delta temp s1 and s2 seems very high??

or have I missed summat??

[dhaslam]

Yes second shower out of the cylinder so the bottom of the cylinder would have about the same  temperature as the water in the tank upstairs.    Using hot water at the  same time as the panels  are reaching full output greatly increases  heat gain.    It shows that there is potential to get a lot more efficiency  from panels with the proper  setup.   For so much of the time not much heat can be transferred because the cylinder temperature is approaching the panel temperature.