Air-water heat pump current consumption and data

At 1 p.m. the heating was actually off for once, the return flow was at 28.5 degrees. Five hours later (despite the sun), the return flow was then at 25.5 and the heating turned on again. So it will probably be a bit less than 45 kWh tomorrow, let's see.

Otherwise, it will be 15 degrees warmer again next week, then consumption should look significantly better.

Here we at least have a small but fine difference and part of the solution. Your heating turns on again at a return flow temperature of 25.5 degrees. For me, yesterday it was below a return flow temperature of 23.5 degrees. That also shows what the lower heating curve really does, so that the solar gains still have even more effect on the runtime than they already do through the heat. If we had the same heating curve, my heat pump would also turn on earlier because the solar energy of course cannot heat the room + screed long enough to permanently exceed 25.5 degrees. The 23.5 degrees, on the other hand, can be maintained longer. That's my theory.

From 12 degrees (averaged over 24h), my heat pump turns off. Let's see if that's really smart. :cool:

I consider 12°C early ;-)
I am also curious.

With us, the temperatures are slowly going back into the positive range. I have set the flow temperature of my heat pump from max. 35°C to max. 30°C. Let's see if the temperatures in the house are still reached and how the electricity consumption behaves.

12°C I think is early ;-) I'm curious too.

I just don't know. Last year I simply turned off the ERR and the heat pump kept running. This year the heat pump has to turn itself off. Whether 12 degrees is okay will depend a lot on the sunlight.

Correct. But why don’t you drive the curve further up to, for example, 15°C. The heat pump then runs now and then to check if the return temperature is below the target return temperature. It doesn’t cost anything... Otherwise, the heat pump completely switches off at 12°C. My switch-on temperature is at 18°C.

Here, the temperatures are slowly moving back into the positive range. I have set the flow temperature on my heat pump from a max of 35°C to a max of 30°C. Let’s see if the temperatures inside the house are still reached and how the electricity consumption behaves.

Just like that? ...and before it was 5 degrees too warm for you? I don’t understand this measure as a solo action.