Heat Pump Sizing for 76 m² (818 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 Pump6.0 kW20,473 BTU/h (1.71 Tons)
Annual Electricity Usage3,723 kWh/yrDelivers 13,032 kWh Heat (SCOP 3.5)
Savings vs Direct Electric9,309 kWh/yrSpecific Load: 71.5 W/m²
Electrical Circuit (230V)13 A BreakerPeak Compressor Input: 2.22 kW
Thermal & Electrical Specification Table (76 m² / 818 sq ft)
| Heated Floor Area | 76 m² (818 sq ft) |
| Climate Zone & Design Outdoor Temp | US North & Canada Cold (-18°C Design, NY/IL/MI/ON) |
| Building Insulation Envelope | Standard Double-Glazed Insulation (55 W/m² Base) (71.5 W/m² Peak) |
| Peak Space Heating Load | 5.43 kW Thermal |
| Recommended Heat Pump Output (Incl. DHW) | 6.0 kW (20,473 BTU/h · 1.71 Tons) |
| Seasonal Coefficient of Performance (SCOP) | 3.5 (340%–450% Seasonal Efficiency) |
| Annual Heat Demand vs Electricity Consumed | 13,032 kWh Heat → 3,723 kWh Electricity |
Frequently Asked Questions
What kW size heat pump do I need for a 76 m² (818 sq ft) house?
For a 76 m² (818 sq ft) building with Standard Double-Glazed Insulation (55 W/m² Base) in US North & Canada Cold (-18°C Design, NY/IL/MI/ON), the peak space heating load is 5.43 kW (71.5 W/m²). Including domestic hot water allowance, a 6.0 kW (20,473 BTU/h / 1.71 Ton) heat pump is recommended.
How many kWh of electricity does a 6.0 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 3,723 kWh of electricity per year to deliver 13,032 kWh of heat — saving 9,309 kWh/year compared to direct electric radiators.
Compare Other Home Sizes & Climate Zones
60 m² (646 ft²) Heat Pump80 m² (861 ft²) Heat Pump100 m² (1076 ft²) Heat Pump120 m² (1292 ft²) Heat Pump140 m² (1507 ft²) Heat Pump160 m² (1722 ft²) Heat Pump180 m² (1938 ft²) Heat Pump200 m² (2153 ft²) Heat Pump250 m² (2691 ft²) Heat Pump300 m² (3229 ft²) Heat Pump76 m² in Nordic / Scandinavia76 m² in Central Europe / DACH76 m² in UK & Temperate Maritime76 m² in US Sunbelt & Mediterranean76 m² in Australia & Mild APAC