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❄️ Heat Pump & HVAC Thermal Load · EN 12831 & ACCA Manual J Reference

Heat Pump Sizing for 96 m² (1,033 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 Pump5.1 kW17,402 BTU/h (1.45 Tons)
Annual Electricity Usage1,531 kWh/yrDelivers 6,735 kWh Heat (SCOP 4.4)
Savings vs Direct Electric5,204 kWh/yrSpecific Load: 46.8 W/m²
Electrical Circuit (230V)10 A BreakerPeak Compressor Input: 1.42 kW

Thermal & Electrical Specification Table (96 m² / 1,033 sq ft)

Heated Floor Area96 m² (1,033 sq ft)
Climate Zone & Design Outdoor TempUS Sunbelt & Mediterranean (TX/FL/CA/ES/IT)
Building Insulation EnvelopeStandard Double-Glazed Insulation (55 W/m² Base) (46.8 W/m² Peak)
Peak Space Heating Load4.49 kW Thermal
Recommended Heat Pump Output (Incl. DHW)5.1 kW (17,402 BTU/h · 1.45 Tons)
Seasonal Coefficient of Performance (SCOP)4.4 (340%–450% Seasonal Efficiency)
Annual Heat Demand vs Electricity Consumed6,735 kWh Heat → 1,531 kWh Electricity

Frequently Asked Questions

What kW size heat pump do I need for a 96 m² (1033 sq ft) house?

For a 96 m² (1033 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 4.49 kW (46.8 W/m²). Including domestic hot water allowance, a 5.1 kW (17,402 BTU/h / 1.45 Ton) heat pump is recommended.

How many kWh of electricity does a 5.1 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 1,531 kWh of electricity per year to deliver 6,735 kWh of heat — saving 5,204 kWh/year compared to direct electric radiators.