🔥 NFPA 88A / NFPA 92 (Emergency Smoke Clearing 6 to 10 ACH, Reversible Fans)

Parking Garage Smoke Purge Calculator

Size high-temperature reversible emergency smoke purge ventilation fans for underground parking garages under NFPA 88A & NFPA 92: calculate emergency exhaust airflow (6 to 10 Air Changes per Hour ACH [high-temperature rated 300°C / 572°F for 2 hours]), size motorized make-up air intake louvers, and life safety mechanical contracting profits.

1. Project & Operating Inputs

Enclosed Garage Total Volume (Cubic Feet e.g. 1,200,000 Cu Ft Garage)

Design Emergency Smoke Purge Rate (ACH e.g. 8.0 Air Changes / Hour)

Customer Bid Price for Supplied & Rigged Smoke Exhaust Fans ($)

Greenheck High-Temp Vane-Axial Fans, 2-Hr Fire Rated Starters, Controls ($)

2. Financial Breakdown & Yield

NFPA 88A GARAGE SMOKE PURGE

Turnkey Smoke Purge Fan Skid Profit

Emergency Life Safety HVAC Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost