Heat Pump Sizing for 228 m² (2,454 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 Pump25.8 kW88,033 BTU/h (7.34 Tons)
Annual Electricity Usage17,273 kWh/yrDelivers 60,456 kWh Heat (SCOP 3.5)
Savings vs Direct Electric43,183 kWh/yrSpecific Load: 110.5 W/m²
Electrical Circuit (230V)60 A BreakerPeak Compressor Input: 9.56 kW
Thermal & Electrical Specification Table (228 m² / 2,454 sq ft)
| Heated Floor Area | 228 m² (2,454 sq ft) |
| Climate Zone & Design Outdoor Temp | US North & Canada Cold (-18°C Design, NY/IL/MI/ON) |
| Building Insulation Envelope | Older Uninsulated Building (85 W/m² Base) (110.5 W/m² Peak) |
| Peak Space Heating Load | 25.19 kW Thermal |
| Recommended Heat Pump Output (Incl. DHW) | 25.8 kW (88,033 BTU/h · 7.34 Tons) |
| Seasonal Coefficient of Performance (SCOP) | 3.5 (340%–450% Seasonal Efficiency) |
| Annual Heat Demand vs Electricity Consumed | 60,456 kWh Heat → 17,273 kWh Electricity |
Frequently Asked Questions
What kW size heat pump do I need for a 228 m² (2454 sq ft) house?
For a 228 m² (2454 sq ft) building with Older Uninsulated Building (85 W/m² Base) in US North & Canada Cold (-18°C Design, NY/IL/MI/ON), the peak space heating load is 25.19 kW (110.5 W/m²). Including domestic hot water allowance, a 25.8 kW (88,033 BTU/h / 7.34 Ton) heat pump is recommended.
How many kWh of electricity does a 25.8 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 17,273 kWh of electricity per year to deliver 60,456 kWh of heat — saving 43,183 kWh/year compared to direct electric radiators.
Compare Other Home Sizes & Climate Zones
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