HVAC Cooling Load Calculator
Calculate cooling and heating loads for HVAC system sizing. Accounts for room dimensions, climate zone, orientation, windows, occupancy, and equipment heat gains.
Room Dimensions
Room: 30 m² | Volume: 90 m³
Climate & Location
Building Envelope
Top floor or flat roof with sun exposure
Internal Heat Loads
~400 BTU/hr per person
Computers, appliances, lighting
Cooling Load
2.8 kW
Tonnage
0.8 TR
BTU/hr
10k
Required Cooling Capacity
9,609 BTU/hr
2.82 kW|0.8 Tons
Recommended AC Unit
1 Ton (12,000 BTU)
Includes 15% safety factor
Load Breakdown
Envelope Load4,050BTU/hr
Window/Solar Load1,000BTU/hr
Occupant Load1,600BTU/hr
Equipment Load1,706BTU/hr
Total Sensible Load8,356BTU/hr
Room Specifications
Floor Area30m²
Volume90m³
Climate ZoneHot & Humid (Gulf)
BTU per m²320BTU/m²
Notes:
- 1 Ton of Refrigeration = 12,000 BTU/hr = 3.517 kW
- Safety factor of 15% included for peak loads
- Actual sizing may vary based on specific conditions
- Consider additional capacity for kitchen areas
- Consult HVAC engineer for precise system design
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DISCLAIMER
This calculator provides ESTIMATES for preliminary planning purposes. Results are based on standard assumptions and may not reflect your specific project conditions.
By using this tool, you acknowledge that:
1. All calculations are approximate and based on typical industry standards and assumptions.