Available HVAC & Critical Control Engineering Calculators
Select an interactive tool below to run field calculations built on strict ASHRAE, NFPA, and IBC standards.
NFPA 92 / 204 Compliant
Smoke Ventilation & Fire Dynamics Sizer
Evaluate enclosure geometry, fuel hazard models, and plume temperatures to compute mechanical extraction capacities and natural buoyant venting areas.
ASHRAE / GMP
Airlock Leakage Flow Calculator
Calculate exfiltration airflow through door clearances using the ASHRAE sharp-edge orifice derivation to verify cleanroom pressure cascades.
Hydronic Systems
Chilled Water Buffer Tank Sizer
Determine accurate fluid volumes for primary-secondary networks to minimize compressor short-cycling and protect plant equipment.
Financial Baseline
HVAC CAPEX & OPEX Estimator
Generate plant equipment cost metrics, evaluating performance variations between full-fresh-air and recirculating AHU plant models.