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AC BTU Load Calculator

Choosing the right air conditioner is crucial not only for your comfort but also for energy savings. Calculate the BTU capacity you need in seconds based on the size of your space, the climate of your region, and the orientation of your room. Choosing the wrong capacity can lead to inefficient operation or unnecessary increases in your energy bill.

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Key Factors Affecting Air Conditioner Capacity (BTU)

When calculating the required air conditioner BTU, it is not just the room size that matters; the thermal load the space is exposed to must also be considered. Our assistant takes the following dynamics into account when performing this calculation:

  • Square Footage (m²): The first and most critical variable that determines the total volume of air the air conditioner needs to condition.

  • Geographic Region and Climate: Climate conditions vary significantly from region to region. The multiplier coefficient for regions experiencing extreme summer temperatures, such as the Mediterranean and Aegean, is different from the capacity requirements in cooler or more temperate regions.

  • Purpose of the Space: The thermal load of a standard bedroom is completely different from that of a cafe, restaurant, or hair salon where computers are running, kitchens are active, or human traffic is high. BTU requirements are always higher in commercial spaces.

  • Orientation and Insulation: Capacity requirements can vary by 10% to 20% between a south-facing room receiving direct sunlight and a well-insulated north-facing room.

Which BTU Capacity Do You Need? (Practical Guide)

Based on the results provided by our assistant, here are the ideal usage areas for the most popular standard air conditioner capacities:

  • 9,000 BTU/h: Ideal for small rooms, bedrooms, nurseries, and small office partitions between 12 - 18 m².

  • 12,000 BTU/h: The most balanced solution for standard living rooms in apartments and areas between 20 - 28 m².

  • 18,000 BTU/h: Offers high air circulation power for large living rooms, open-plan kitchen layouts, and medium-sized commercial spaces between 35 - 45 m².

  • 24,000 BTU/h: The most powerful wall-mounted capacity designed for massive living areas, large meeting rooms, restaurants, and spacious business premises between 50 - 70 m².

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