⚡ 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 92 m² (990 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 Pump7.4 kW25,250 BTU/h (2.1 Tons)
Annual Electricity Usage5,223 kWh/yrDelivers 17,758 kWh Heat (SCOP 3.4)
Savings vs Direct Electric12,535 kWh/yrSpecific Load: 74.2 W/m²
Electrical Circuit (230V)16 A BreakerPeak Compressor Input: 2.85 kW

Thermal & Electrical Specification Table (92 m² / 990 sq ft)

Heated Floor Area92 m² (990 sq ft)
Climate Zone & Design Outdoor TempNordic / Scandinavia (-20°C Design, SE/NO/FI/DK)
Building Insulation EnvelopeStandard Double-Glazed Insulation (55 W/m² Base) (74.2 W/m² Peak)
Peak Space Heating Load6.83 kW Thermal
Recommended Heat Pump Output (Incl. DHW)7.4 kW (25,250 BTU/h · 2.1 Tons)
Seasonal Coefficient of Performance (SCOP)3.4 (340%–450% Seasonal Efficiency)
Annual Heat Demand vs Electricity Consumed17,758 kWh Heat → 5,223 kWh Electricity

Frequently Asked Questions

What kW size heat pump do I need for a 92 m² (990 sq ft) house?

For a 92 m² (990 sq ft) building with Standard Double-Glazed Insulation (55 W/m² Base) in Nordic / Scandinavia (-20°C Design, SE/NO/FI/DK), the peak space heating load is 6.83 kW (74.2 W/m²). Including domestic hot water allowance, a 7.4 kW (25,250 BTU/h / 2.1 Ton) heat pump is recommended.

How many kWh of electricity does a 7.4 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 5,223 kWh of electricity per year to deliver 17,758 kWh of heat — saving 12,535 kWh/year compared to direct electric radiators.