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Home / system #1275

Nibe S2060

Knaphill, Surry · Mid-terrace · 60 m² · 1983 to 2011 · 6 kW · radiators · installed by Urban Plumbers Ltd

Last 30 daysLast 7 days5 Jan – 4 Feb 2026 (winter reference)1–31 Dec 2025

Last 30 days

721 hourly rows · MID-class heat meter present: yes
4.12efficiency (COP) over 721 hours, from the heat meter
better than 84% of the metered fleet in January 2026
Electricity used
87 kWh
Heat delivered
358 kWh (heat meter)
Estimate without heat meter
flow sensor 3.71 · temperature model 4.68
Mean outdoor temperature
11.1 °C · 24 space-heating hours
Flow temperature at 0 °C outside
27.7 °C (curve slope -0.27 per K)
Flow − return while heating
2.3 K
House needs at −3 °C
1.6 kW (unit rated 6 kW) · fit r² 0.01
Hot water
41% of electricity, COP 3.35
infoOnly 24 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.

Day by day

electricity per daydaily COP3.0 floor
electricity, kWh per day0242026-10-08: 1.9 kWh, outside 12.3 °C2026-10-09: 2.4 kWh, outside 15.1 °C2026-10-10: 2.9 kWh, outside 11.4 °C2026-10-11: 2.5 kWh, outside 11.5 °C2026-10-12: 2.2 kWh, outside 14.9 °C2026-10-13: 1.3 kWh, outside 16.3 °C2026-10-14: 2.5 kWh, outside 13.1 °C2026-10-15: 1.2 kWh, outside 17 °C2026-10-16: 1.8 kWh, outside 12.2 °C2026-10-17: 3.7 kWh, outside 8.8 °C2026-10-18: 3.6 kWh, outside 9 °C2026-10-19: 2.3 kWh, outside 10.6 °C2026-10-20: 3.1 kWh, outside 10.9 °C2026-10-21: 3.2 kWh, outside 8.8 °C2026-10-22: 3 kWh, outside 11.6 °C2026-10-23: 3.4 kWh, outside 10 °C2026-10-24: 2.2 kWh, outside 10.4 °C2026-10-25: 3.1 kWh, outside 10.6 °C2026-10-26: 3.1 kWh, outside 12.1 °C2026-10-27: 2.2 kWh, outside 13.2 °C2026-10-28: 3.1 kWh, outside 11.2 °C2026-10-29: 3 kWh, outside 12.2 °C2026-10-30: 3.1 kWh, outside 10.7 °C2026-10-31: 2.6 kWh, outside 10.3 °C2026-11-01: 3.3 kWh, outside 7.8 °C2026-11-02: 2.9 kWh, outside 9.2 °C2026-11-03: 3.6 kWh, outside 9.2 °C2026-11-04: 3.6 kWh, outside 8.8 °C2026-11-05: 4.1 kWh, outside 8.6 °C2026-11-06: 3.9 kWh, outside 8.5 °C2026-11-07: 2.2 kWh, outside 4.1 °Cdaily COP (heat ÷ electricity)1352026-10-08: COP 3.862026-10-09: COP 3.592026-10-10: COP 3.762026-10-11: COP 3.742026-10-12: COP 3.392026-10-13: COP 2.432026-10-14: COP 2.882026-10-15: COP 2.422026-10-16: COP 3.012026-10-17: COP 3.742026-10-18: COP 4.272026-10-19: COP 4.392026-10-20: COP 3.952026-10-21: COP 4.752026-10-22: COP 4.372026-10-23: COP 4.122026-10-24: COP 5.222026-10-25: COP 4.252026-10-26: COP 4.042026-10-27: COP 4.372026-10-28: COP 3.742026-10-29: COP 3.842026-10-30: COP 3.822026-10-31: COP 4.432026-11-01: COP 4.332026-11-02: COP 4.852026-11-03: COP 4.652026-11-04: COP 4.722026-11-05: COP 4.532026-11-06: COP 4.582026-11-07: COP 4.7610-0810-1210-1610-2010-2410-2811-0111-05
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.