Cooling Sizer

Rough AC tonnage from area, height, insulation and sun.

Rule-of-thumb method, reviewed: 2026-10-01

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Floor area (m²)Ceiling height (m)

InsulationSun exposure

Cooling needed

3 T

Capacity

36,000 BTU

Suggested split units

2 × 2T

How it sizes

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My m² per ton (empty = default)

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Rough sizing only — not a substitute for a proper heat-load calculation. Always confirm with an HVAC engineer before buying.