Improve efficiency: Was it worth it?

[MyForest (David Bowen)]

@TrystanLea

it looks like you could absorb that heat at 35C flow temp

I tried is again a couple of days ago @TrystanLea - still no dice. The Ecodan started cycling.

Improve efficiency: Turn the heat pump off

I thought I’d try again following @Timbones pointing out the Heat Geek link. I’ve opened all the radiators fully and it’s a bit cold ( 7.0 °C ). [image] It’s going pretty badly. I started the experiment at 17:30. You can see beforehand the efficiency was better. It was actually 373% with a flow temp of 37.0 °C. With the system being wide-open it was 304% with a flow temp of 34 °C. We can see the cycling because the heat pump can’t modulate down far enough. It averaged 1.54kW of input po…

As you say, it also got too warm!