Heat pump sizing is important for efficient heating and cooling performance. An undersized heat pump cannot maintain indoor temperature, while an oversized system wastes energy.
Heating Load (W) = Area × 60 × Climate Factor × Insulation Factor
Heat Pump Size (kW) = Heating Load ÷ 1000
Home Size = 150 m² Climate Factor = 1.1 Insulation Factor = 1
Required Heat Pump ≈ 9.9 kW
This calculator provides a quick estimate for residential heat pump capacity.
Heat pump size depends on home area, climate zone and insulation level. Typical residential heat pumps range between 6 kW and 16 kW.
Yes. Oversized heat pumps cause short cycling and reduce efficiency.
Most residential systems range between 8 kW and 12 kW depending on house size.
Correct sizing improves efficiency, comfort and system lifespan.