Leading Edge Industrial & Commercial Ventilation Products
Custom Orders Call 1.866.433.8335 for a friendly customer service representative who can customize your commercial kitchen ventilation hood system complete with exhaust fan, make up air heater or supply air package, fire suppression system, electrical control package, stainless grease duct and more, while providing you a fast quotation including submittal drawing packages. Our product line includes ETL and ANSI listed commercial kitchen ventilation hood systems, commercial kitchen exhaust fans, heaters, make-up air units, grease rated ductwork, motors and more all with a one year warranty.
Direct-Fired Formulas

Heating Requirements
Input BTU/Hr =   (Blower SCFM * Temp Rise * Density Factor) / .92


Temp Rise =   (Input BTU/Hr * .92)

Blower SCFM * Density Factor


Density Factor =   1.08 +  (70-Blower Temp) * .024

10



Output BTU/Hr
Output BTU/Hr =   Input BTU/Hr * .92



Profile Velocity
Profile Velocity =   945 * sqrt(Profile Pressure / 0.075)



Burner Areas
6 Inch Straight = .32 sq ft.
12 Inch Straight = .65 sq ft.
T Section = .77 sq ft.
Ell Section = .65 sq ft.