How to Calculate the BTU Your Space Needs

Avoid buying an undersized or oversized unit.

FANTASTIC SOLUTIONS GROUP WHAT EVERY CUSTOMER SHOULD KNOW HOW MANY BTU PER M² OF SPACE 12m² 18m² 26m² 35m² 46m² 65m² 9,000 BTU 12,000 BTU 18,000 BTU 24,000 BTU 32,000 BTU 48,000 BTU #mantenimiento #aireacondicionado #btu

Quick reference table

This table is a general guide; the exact size depends on your space's specific conditions.

  • 9,000 BTU: up to 12 m² (small bedroom)
  • 12,000 BTU: up to 18 m² (bedroom, small office)
  • 18,000 BTU: up to 26 m² (medium living room)
  • 24,000 BTU: up to 35 m² (large living room, dining area)
  • 32,000 BTU: up to 46 m² (open spaces, small commercial units)
  • 48,000 BTU: up to 65 m² (medium commercial spaces)
  • Over 65 m²: a multi split, ducted system, or professional evaluation is recommended

Factors that increase BTU needs

  • A lot of direct sun on the space
  • Very high ceilings
  • More than two people regularly in the space
  • A kitchen or other heat-generating equipment
  • Top floor of the building (heat from the roof)

Why it's not worth guessing

An oversized unit turns on and off too often, dehumidifies poorly, and uses more electricity than necessary. An undersized unit never cools properly, runs constantly at full capacity, and wears out faster.

Get an exact calculation, at no cost

In your free estimate, we measure your space and recommend the right size unit.

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