Home / system #1264
Grant Aerona HP290
Shirebrook, Mansfield · End-terrace · 141 m² · 2012 or newer · 4 kW · radiators · installed by Ipsum Renewables
Last 7 days
169 hourly rows · MID-class heat meter present: yes
3.68efficiency (COP) over 169 hours, from the heat meter
better than 50% of the metered fleet in January 2026
better than 50% of the metered fleet in January 2026
- Electricity used
- 25 kWh
- Heat delivered
- 91 kWh (heat meter)
- Estimate without heat meter
- flow sensor 3.60 · temperature model 3.26
- Mean outdoor temperature
- 8.8 °C · 7 space-heating hours
- Flow temperature at 0 °C outside
- 32.6 °C (curve slope -0.30 per K)
- Flow − return while heating
- 2.2 K
- House needs at −3 °C
- 1.1 kW (unit rated 4 kW) · fit r² 0.00
- Hot water
- 85% of electricity, COP 3.64
infoOnly 7 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.
valueReaching the fleet’s January median (3.69) would have saved about £0 in this window at 0.25 GBP/kWh. An estimate, not a promise.
Day by day
electricity per daydaily COP3.0 floor
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.