💨 BS 7346-7 / NFPA 88A (Thrust 30N-50N, Eliminating Complex Sheet Metal Ductwork)

Parking Garage Impulse Jet Fan Calculator

Size ductless impulse jet fan longitudinal tunnel ventilation systems (Systemair / Greenheck) for underground commercial parking garages under BS 7346-7 & NFPA 88A: calculate jet nozzle thrust force (30 to 50 Newtons), calculate total induced air volume (moving 10x nozzle airflow to sweep dead zones directly toward main exhaust shafts), and ductless HVAC profits.

1. Project & Operating Inputs

Impulse Jet Fans Installed (Fan Count e.g. 18 Ceiling-Mounted Jet Fans)

Jet Fan Thrust Rating (Newtons e.g. 45.0 N Induction Thrust)

Customer Bid Price for Supplied & Landed Jet Fan System ($ / Unit)

Systemair Low-Profile Jet Fan, Deflector Blades, Acoustic Silencer & Tech ($)

2. Financial Breakdown & Yield

IMPULSE JET FAN VENTILATION

Turnkey Ductless Jet Fan Package Profit

Garage Ventilation Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost