Experiment - Heat Pump vs Gas Boiler - the ultimate comparison in efficiency and operation cost

  • living room illuminance (as we’ve got a lot of south facing windows, this impacts the overall picture quite a lot)

Do you have solar panels?
Then you could add the amount of produced solar energy, I think it gives an idea of the external influence.

Good idea, I will add that this weekend.

Any updates on the experiment?

Very interesting @rdehuyss I was thinking to start collecting the same info. Any updates from you?
Thanks a lot!