Heat Pump Sizing for 130 m² (1,399 sq ft) — US Sunbelt & Mediterranean (TX/FL/CA/ES/IT)
Thermal heat loss calculation, recommended heat pump capacity (kW, BTU/h & HVAC Tons), SCOP efficiency, and annual electricity consumption.
Recommended Heat Pump6.7 kW22,861 BTU/h (1.91 Tons)
Annual Electricity Usage2,073 kWh/yrDelivers 9,120 kWh Heat (SCOP 4.4)
Savings vs Direct Electric7,047 kWh/yrSpecific Load: 46.8 W/m²
Electrical Circuit (230V)13 A BreakerPeak Compressor Input: 1.86 kW
Thermal & Electrical Specification Table (130 m² / 1,399 sq ft)
| Heated Floor Area | 130 m² (1,399 sq ft) |
| Climate Zone & Design Outdoor Temp | US Sunbelt & Mediterranean (TX/FL/CA/ES/IT) |
| Building Insulation Envelope | Standard Double-Glazed Insulation (55 W/m² Base) (46.8 W/m² Peak) |
| Peak Space Heating Load | 6.08 kW Thermal |
| Recommended Heat Pump Output (Incl. DHW) | 6.7 kW (22,861 BTU/h · 1.91 Tons) |
| Seasonal Coefficient of Performance (SCOP) | 4.4 (340%–450% Seasonal Efficiency) |
| Annual Heat Demand vs Electricity Consumed | 9,120 kWh Heat → 2,073 kWh Electricity |
Frequently Asked Questions
What kW size heat pump do I need for a 130 m² (1399 sq ft) house?
For a 130 m² (1399 sq ft) building with Standard Double-Glazed Insulation (55 W/m² Base) in US Sunbelt & Mediterranean (TX/FL/CA/ES/IT), the peak space heating load is 6.08 kW (46.8 W/m²). Including domestic hot water allowance, a 6.7 kW (22,861 BTU/h / 1.91 Ton) heat pump is recommended.
How many kWh of electricity does a 6.7 kW heat pump use per year?
With a Seasonal Coefficient of Performance (SCOP) of 4.4 over 1500 full-load equivalent heating hours, the heat pump consumes approximately 2,073 kWh of electricity per year to deliver 9,120 kWh of heat — saving 7,047 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 Pump130 m² in Nordic / Scandinavia130 m² in Central Europe / DACH130 m² in UK & Temperate Maritime130 m² in US North & Canada Cold130 m² in Australia & Mild APAC