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 Pump4.9 kW16,719 BTU/h (1.39 Tons)
Annual Electricity Usage3,319 kWh/yrDelivers 11,284 kWh Heat (SCOP 3.4)
Savings vs Direct Electric7,965 kWh/yrSpecific Load: 47.2 W/m²
Electrical Circuit (230V)13 A BreakerPeak Compressor Input: 1.88 kW
Thermal & Electrical Specification Table (92 m² / 990 sq ft)
| Heated Floor Area | 92 m² (990 sq ft) |
| Climate Zone & Design Outdoor Temp | Nordic / Scandinavia (-20°C Design, SE/NO/FI/DK) |
| Building Insulation Envelope | Modern / New Build Insulation (35 W/m² Base) (47.2 W/m² Peak) |
| Peak Space Heating Load | 4.34 kW Thermal |
| Recommended Heat Pump Output (Incl. DHW) | 4.9 kW (16,719 BTU/h · 1.39 Tons) |
| Seasonal Coefficient of Performance (SCOP) | 3.4 (340%–450% Seasonal Efficiency) |
| Annual Heat Demand vs Electricity Consumed | 11,284 kWh Heat → 3,319 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 Modern / New Build Insulation (35 W/m² Base) in Nordic / Scandinavia (-20°C Design, SE/NO/FI/DK), the peak space heating load is 4.34 kW (47.2 W/m²). Including domestic hot water allowance, a 4.9 kW (16,719 BTU/h / 1.39 Ton) heat pump is recommended.
How many kWh of electricity does a 4.9 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 3,319 kWh of electricity per year to deliver 11,284 kWh of heat — saving 7,965 kWh/year compared to direct electric radiators.
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