⚡ Cu ρ (75°C): 0.0214 Ω·mm²/m 🔌 NEC / IEC Standards: NFPA 70 & IEC 60364 🇺🇸 US Grid Avg: $0.175/kWh 🇩🇪 DE Grid Avg: €0.345/kWh 🇸🇪 SE Elpris: 1.54 SEK/kWh 🇳🇴 NO Strøm: 1.17 NOK/kWh 🔩 Copper Ref: $9,650/t (2026-10-25)
❄️ Heat Pump & HVAC Thermal Load · EN 12831 & ACCA Manual J Reference

Heat Pump Sizing for 216 m² (2,325 sq ft) — Nordic / Scandinavia (-20°C Design, SE/NO/FI/DK)

Thermal heat loss calculation, recommended heat pump capacity (kW, BTU/h & HVAC Tons), SCOP efficiency, and annual electricity consumption.

Recommended Heat Pump25.4 kW86,668 BTU/h (7.22 Tons)
Annual Electricity Usage18,965 kWh/yrDelivers 64,480 kWh Heat (SCOP 3.4)
Savings vs Direct Electric45,515 kWh/yrSpecific Load: 114.8 W/m²
Electrical Circuit (230V)60 A BreakerPeak Compressor Input: 9.77 kW

Thermal & Electrical Specification Table (216 m² / 2,325 sq ft)

Heated Floor Area216 m² (2,325 sq ft)
Climate Zone & Design Outdoor TempNordic / Scandinavia (-20°C Design, SE/NO/FI/DK)
Building Insulation EnvelopeOlder Uninsulated Building (85 W/m² Base) (114.8 W/m² Peak)
Peak Space Heating Load24.8 kW Thermal
Recommended Heat Pump Output (Incl. DHW)25.4 kW (86,668 BTU/h · 7.22 Tons)
Seasonal Coefficient of Performance (SCOP)3.4 (340%–450% Seasonal Efficiency)
Annual Heat Demand vs Electricity Consumed64,480 kWh Heat → 18,965 kWh Electricity

Frequently Asked Questions

What kW size heat pump do I need for a 216 m² (2325 sq ft) house?

For a 216 m² (2325 sq ft) building with Older Uninsulated Building (85 W/m² Base) in Nordic / Scandinavia (-20°C Design, SE/NO/FI/DK), the peak space heating load is 24.8 kW (114.8 W/m²). Including domestic hot water allowance, a 25.4 kW (86,668 BTU/h / 7.22 Ton) heat pump is recommended.

How many kWh of electricity does a 25.4 kW heat pump use per year?

With a Seasonal Coefficient of Performance (SCOP) of 3.4 over 2600 full-load equivalent heating hours, the heat pump consumes approximately 18,965 kWh of electricity per year to deliver 64,480 kWh of heat — saving 45,515 kWh/year compared to direct electric radiators.