Heat Pump Sizing for 22 m² (237 sq ft) — US North & Canada Cold (-18°C Design, NY/IL/MI/ON)
Thermal heat loss calculation, recommended heat pump capacity (kW, BTU/h & HVAC Tons), SCOP efficiency, and annual electricity consumption.
Recommended Heat Pump1.6 kW5,459 BTU/h (0.45 Tons)
Annual Electricity Usage686 kWh/yrDelivers 2,400 kWh Heat (SCOP 3.5)
Savings vs Direct Electric1,714 kWh/yrSpecific Load: 45.5 W/m²
Electrical Circuit (230V)6 A BreakerPeak Compressor Input: 0.59 kW
Thermal & Electrical Specification Table (22 m² / 237 sq ft)
| Heated Floor Area | 22 m² (237 sq ft) |
| Climate Zone & Design Outdoor Temp | US North & Canada Cold (-18°C Design, NY/IL/MI/ON) |
| Building Insulation Envelope | Modern / New Build Insulation (35 W/m² Base) (45.5 W/m² Peak) |
| Peak Space Heating Load | 1.0 kW Thermal |
| Recommended Heat Pump Output (Incl. DHW) | 1.6 kW (5,459 BTU/h · 0.45 Tons) |
| Seasonal Coefficient of Performance (SCOP) | 3.5 (340%–450% Seasonal Efficiency) |
| Annual Heat Demand vs Electricity Consumed | 2,400 kWh Heat → 686 kWh Electricity |
Frequently Asked Questions
What kW size heat pump do I need for a 22 m² (237 sq ft) house?
For a 22 m² (237 sq ft) building with Modern / New Build Insulation (35 W/m² Base) in US North & Canada Cold (-18°C Design, NY/IL/MI/ON), the peak space heating load is 1.0 kW (45.5 W/m²). Including domestic hot water allowance, a 1.6 kW (5,459 BTU/h / 0.45 Ton) heat pump is recommended.
How many kWh of electricity does a 1.6 kW heat pump use per year?
With a Seasonal Coefficient of Performance (SCOP) of 3.5 over 2400 full-load equivalent heating hours, the heat pump consumes approximately 686 kWh of electricity per year to deliver 2,400 kWh of heat — saving 1,714 kWh/year compared to direct electric radiators.
Compare Other Home Sizes & Climate Zones
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