710 hourly rows · MID-class heat meter present: yes
5.29efficiency (COP) over 710 hours, from the heat meter better than 99% of the metered fleet in January 2026
Electricity used
320 kWh
Heat delivered
1690 kWh (heat meter)
Estimate without heat meter
flow sensor 5.38 · temperature model 5.54
Mean outdoor temperature
12.1 °C · 515 space-heating hours
Flow temperature at 0 °C outside
37.1 °C (curve slope -0.66 per K)
Flow − return while heating
3.0 K
House needs at −3 °C
5.8 kW (unit rated 7 kW) · fit r² 0.41
Hot water
14% of electricity, COP 4.10
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Day by day
electricity per daydaily COP3.0 floor
Daily COP needs a heat meter; days without one show electricity only.
The installed heating curve
one heating hourfitted curve50 °C
Each point is one hour of space heating. Lower and flatter is cheaper; well-set radiator systems sit around 35–42 °C at 0 °C outside.
Public system published by its owner on HeatpumpMonitor.org. Cycling (starts per hour) comes from the site’s 365-day statistic. Findings use installer rules of thumb; see methodology.