1. What is Fujitsu Mini Split BTU Calculator?

The Fujitsu Mini Split BTU Calculator estimates the required British Thermal Units (BTU) for Fujitsu mini split air conditioning systems based on room area in square meters. This helps determine the appropriate AC unit size for optimal cooling efficiency.

2. How Does the Calculator Work?

The calculator uses the BTU calculation formula:

Where:

• \( Area \) — Room area in square meters (m²)
• \( BTU Factor \) — 300-400 BTU per square meter

Explanation: The BTU factor ranges from 300-400 BTU/m² depending on room insulation, sunlight exposure, and climate conditions.

3. Importance of Proper BTU Calculation

Details: Accurate BTU calculation ensures efficient cooling, proper dehumidification, energy savings, and extended system lifespan. Undersized units struggle to cool, while oversized units short-cycle and waste energy.

4. Using the Calculator

Tips: Enter room area in square meters and select appropriate BTU factor (300 for well-insulated rooms, 400 for rooms with high heat gain). All values must be valid (area > 0).

5. Frequently Asked Questions (FAQ)

Q1: What BTU factor should I choose?
A: Use 300 BTU/m² for well-insulated rooms, 350 for average conditions, and 400 for rooms with large windows, poor insulation, or high heat loads.

Q2: How do I measure room area?
A: Multiply room length by width in meters. For irregular rooms, divide into rectangular sections and sum the areas.

Q3: What if my room has high ceilings?
A: For ceilings over 2.7 meters, increase the BTU factor or calculate room volume (m³) and use 100-150 BTU per cubic meter.

Q4: Are there other factors to consider?
A: Yes - consider number of occupants, heat-generating appliances, window size/direction, and insulation quality for precise sizing.

Q5: Can I use this for multiple rooms?
A: This calculator is for single rooms. For multiple rooms, calculate each room separately or consult an HVAC professional for whole-house sizing.