704 hourly rows · MID-class heat meter present: yes
1.46efficiency (COP) over 704 hours, from the heat meter better than 0% of the metered fleet in January 2026
Electricity used
90 kWh
Heat delivered
131 kWh (heat meter)
Estimate without heat meter
flow sensor 2.28 · temperature model 5.24
Mean outdoor temperature
12.3 °C · 17 space-heating hours
Flow temperature at 0 °C outside
11.3 °C (curve slope 1.60 per K)
Flow − return while heating
2.5 K
House needs at −3 °C
-1.0 kW (unit rated 11 kW) · fit r² 0.06
Hot water
33% of electricity, COP 1.49
infoOnly 17 space-heating hours in this window
Space-heating findings need at least 60 hours with the compressor running below 15 °C outside. Choose a winter window or come back during the heating season.
noteOwner’s note on the source site: “Not main heating source or a holiday home, booster heater not metered”
valueReaching the fleet’s January median (3.69) would have saved about £14 in this window at 0.25 GBP/kWh. An estimate, not a promise.
Day by day
electricity per daydaily COP3.0 floor
Daily COP needs a heat meter; days without one show electricity only.
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.