Ventilation
Ventilation system design tools for airflow calculation, duct sizing, pressure drop analysis, and fan selection per SMACNA and ASHRAE standards.
10 calculators
Fan/System Curve Calculator
Analyze fan performance curves, system resistance, and find operating points with VFD simulation
Duct Network Designer
Design complete HVAC duct networks with automatic sizing, critical path analysis, and fan selection requirements
Duct Sizing Calculator
Size HVAC air ducts using equal friction or velocity methods per SMACNA and ASHRAE standards
Duct Pressure Loss
Calculate pressure drop in air ducts and fittings
Fresh Air Flow
Calculate required outdoor air ventilation rates
Pool Ventilation
Calculate ventilation requirements for indoor pools
HRV Sizing
Size heat recovery ventilation systems
Kitchen Hood
Calculate exhaust flow for commercial kitchens
Parking Ventilation
Design mechanical ventilation for parking garages
Shelter Ventilation
Calculate ventilation for emergency shelters