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Hong Kong Air Conditioner BTU Calculator
Estimate air-conditioner capacity from area, ceiling, sun, occupants and room risks.
1Basics2Usage3Review4Full report
Transparent assumptions, visible uncertainty
The base follows the ENERGY STAR room-area table and published adjustments. Top-floor, west-facing, windows, open-plan and insulation flags are risk prompts—not official formula multipliers.
Sources and update status
- ENERGY STAR room air-conditioner capacity guidance
- Carrier Hong Kong official residential window product page
- GREE Hong Kong window-series information (local product page)
- Hitachi Hong Kong official window air-conditioner range
Capacity method and brand-comparison links reviewed: 10 August 2026. Verify the exact model, rated BTU/h and supplier terms before acting.