How do I choose the right size portable air conditioner (BTU) for my room?

• Air conditioning capacity is measured in BTUs (British Thermal Units). For a standard South African home:

  • 9000 BTU: Ideal for small to medium spaces up to 18 square meters (like bedrooms or small home offices).

  • 12000 BTU: Suited for medium to large rooms up to 25 square meters (like standard lounges or open-plan dining spaces).

  • 18000 BTU+: Needed for very large open spaces over 35 square meters.