Heat Pump Sizing for 110 m² (1,184 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 Pump12.8 kW43,675 BTU/h (3.64 Tons)
Annual Electricity Usage8,331 kWh/yrDelivers 29,160 kWh Heat (SCOP 3.5)
Savings vs Direct Electric20,829 kWh/yrSpecific Load: 110.5 W/m²
Electrical Circuit (230V)30 A BreakerPeak Compressor Input: 4.74 kW
Thermal & Electrical Specification Table (110 m² / 1,184 sq ft)
| Heated Floor Area | 110 m² (1,184 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 | 12.15 kW Thermal |
| Recommended Heat Pump Output (Incl. DHW) | 12.8 kW (43,675 BTU/h · 3.64 Tons) |
| Seasonal Coefficient of Performance (SCOP) | 3.5 (340%–450% Seasonal Efficiency) |
| Annual Heat Demand vs Electricity Consumed | 29,160 kWh Heat → 8,331 kWh Electricity |
Frequently Asked Questions
What kW size heat pump do I need for a 110 m² (1184 sq ft) house?
For a 110 m² (1184 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 12.15 kW (110.5 W/m²). Including domestic hot water allowance, a 12.8 kW (43,675 BTU/h / 3.64 Ton) heat pump is recommended.
How many kWh of electricity does a 12.8 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 8,331 kWh of electricity per year to deliver 29,160 kWh of heat — saving 20,829 kWh/year compared to direct electric radiators.
Compare Other Home Sizes & Climate Zones
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