Heat Pump Sizing for 194 m² (2,088 sq ft) — UK & Temperate Maritime (-5°C Design, UK/IE/NZ)
Thermal heat loss calculation, recommended heat pump capacity (kW, BTU/h & HVAC Tons), SCOP efficiency, and annual electricity consumption.
Recommended Heat Pump7.0 kW23,885 BTU/h (1.99 Tons)
Annual Electricity Usage2,827 kWh/yrDelivers 11,592 kWh Heat (SCOP 4.1)
Savings vs Direct Electric8,765 kWh/yrSpecific Load: 33.2 W/m²
Electrical Circuit (230V)13 A BreakerPeak Compressor Input: 2.12 kW
Thermal & Electrical Specification Table (194 m² / 2,088 sq ft)
| Heated Floor Area | 194 m² (2,088 sq ft) |
| Climate Zone & Design Outdoor Temp | UK & Temperate Maritime (-5°C Design, UK/IE/NZ) |
| Building Insulation Envelope | Modern / New Build Insulation (35 W/m² Base) (33.2 W/m² Peak) |
| Peak Space Heating Load | 6.44 kW Thermal |
| Recommended Heat Pump Output (Incl. DHW) | 7.0 kW (23,885 BTU/h · 1.99 Tons) |
| Seasonal Coefficient of Performance (SCOP) | 4.1 (340%–450% Seasonal Efficiency) |
| Annual Heat Demand vs Electricity Consumed | 11,592 kWh Heat → 2,827 kWh Electricity |
Frequently Asked Questions
What kW size heat pump do I need for a 194 m² (2088 sq ft) house?
For a 194 m² (2088 sq ft) building with Modern / New Build Insulation (35 W/m² Base) in UK & Temperate Maritime (-5°C Design, UK/IE/NZ), the peak space heating load is 6.44 kW (33.2 W/m²). Including domestic hot water allowance, a 7.0 kW (23,885 BTU/h / 1.99 Ton) heat pump is recommended.
How many kWh of electricity does a 7.0 kW heat pump use per year?
With a Seasonal Coefficient of Performance (SCOP) of 4.1 over 1800 full-load equivalent heating hours, the heat pump consumes approximately 2,827 kWh of electricity per year to deliver 11,592 kWh of heat — saving 8,765 kWh/year compared to direct electric radiators.
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