Commercial Kitchen Exhaust Duct Sizing Chart

The illustration above shows a typical commercial kitchen application utilizing a roof mount upblast exhaust fan or wall mount upblast exhaust fan in conjunction with a supply fan.

Commercial kitchen exhaust duct sizing chart.

Sizing an upblast or exhaust fan. Commercial and industrial ventilation can be expensive to install or update and finding the right type and size of fan will keep companies and industries in compliance with codes and regulations. Selecting sizing exhaust hoods is the first design guide in a series that will help you achieve optimum performance and energy efficiency in your commercial kitchen ventilation system. The hood manufacturer dictates the volume of airflow.

1 the shell of the hood 2 the baffled grease filters and 3 the trough at the bottom of the filters. View the kitchen exhaust duct sizing chart below to determine your ductwork diameter based on range hood cfm. Please fill out the following form and we will contact you soon. Sizing and finding high quality low maintenance exhaust and air movement equipment can save money for agencies and business owners.

Minimum duct size of 4 recommended duct size of 6. Flex duct 05 on most metal duct calculator round metal pipe 06 on most metal duct calculators field duct sizing chart rectangular sheet metal duct 07 on most metal duct calculators. Duct system sizes and airflow quick chart created date. Note that not both exhaust fans are required for hood exhaust.

Ashrae tech nical committee 5 10 kitchen ventilation sponsored and provided project guidance for a recently completed research. A commercial restaurant kitchen grease exhaust type 1 vent hood is essentially comprised of three main components. Ommercial kitchen design professionals were concerned that the minimum exhaust air ductwork velocity of 1 500 fpm 7 62 m s as required by the national fire protection association nfpa 96 1 was too restrictive. This design guide reviews the fundamentals of kitchen.

Minimum duct size of 6 recommended duct size of 8. Read on to determine how to size your exhaust and supply fans.