QuickSizing - Free Ventilation Calculator

Quick preliminary design for natural ventilation systems

Free Tool: This tool is always free. For advanced features like Multi-Zone calculations, please create a free account.

Quick calculation of natural ventilation opening areas based on heat load and building height.
kW
m
°C
°C

Application limitations:

  • Assumes 1:1 ratio of aerodynamic effective air inlet and outlet area
  • Assumes even pressure distribution between air inlets and air outlets
  • Does not consider position, geometry and temperature of the heat load

Calculation Results

Your calculated results will appear here.

Specific exhaust flow per aerodynamic exhaust area