⚡ 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 532 m² (5,726 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 Pump61.7 kW210,529 BTU/h (17.54 Tons)
Annual Electricity Usage46,701 kWh/yrDelivers 158,782 kWh Heat (SCOP 3.4)
Savings vs Direct Electric112,081 kWh/yrSpecific Load: 114.8 W/m²
Electrical Circuit (230V)150 A BreakerPeak Compressor Input: 23.73 kW

Thermal & Electrical Specification Table (532 m² / 5,726 sq ft)

Heated Floor Area532 m² (5,726 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 Load61.07 kW Thermal
Recommended Heat Pump Output (Incl. DHW)61.7 kW (210,529 BTU/h · 17.54 Tons)
Seasonal Coefficient of Performance (SCOP)3.4 (340%–450% Seasonal Efficiency)
Annual Heat Demand vs Electricity Consumed158,782 kWh Heat → 46,701 kWh Electricity

Frequently Asked Questions

What kW size heat pump do I need for a 532 m² (5726 sq ft) house?

For a 532 m² (5726 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 61.07 kW (114.8 W/m²). Including domestic hot water allowance, a 61.7 kW (210,529 BTU/h / 17.54 Ton) heat pump is recommended.

How many kWh of electricity does a 61.7 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 46,701 kWh of electricity per year to deliver 158,782 kWh of heat — saving 112,081 kWh/year compared to direct electric radiators.