Estimate the heat pump capacity your home needs, plus running costs vs your current heating.
About the property
m²
Current heating
p/kWh
p/kWh
System
RECOMMENDED HEAT PUMP SIZE
- kW
Peak heat demand: - kW
Assessing…
Annual heat demand
- kWh
Heat pump electricity
- kWh
DHW cylinder
- L
Annual running cost (heat & hot water)
Current heating
£0
Heat pump
£0
Annual difference
£0
Installation (typical)
£0 £0
After £7,500 BUS grant
- yrs payback
Indicative only. Uses simplified W/m² heat loss method — a full MCS room-by-room heat loss calculation is required for any
MCS-certified install. Sizing depends on actual fabric, ventilation, occupancy and design temperature. SCOP figures assume a
well-designed low-temperature system; older properties may need rad upgrades to achieve them.