Commercial Kitchen Exhaust Duct Size

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Commercial kitchen exhaust duct size.

At 1200 cfm and above the duct size will depend on the type of fan motor and the length of the duct run but it should never be smaller than 10 inches in diameter. 507 4 type i materials 507 7 hood joints seams penetrations 507 11 grease filters 507 12 size and location 507 13 capacity exhaust air rate calculations. Minimum duct size of 4 recommended duct size of 6 401 600 cfm. Minimum duct size of 6 recommended duct size of 8.

Are you interested in representing captiveaire and selling our products. Kitchen exhaust grease duct. Also keep in mind that certain code dictates certain spacing between items. Sizing an upblast or exhaust fan.

Inventors of the positive pressure chimney system selkirk products meet and exceed the requirements of codes and other manufacturer products. For commercial kitchen applications when not specified by code the following guidelines may be used to determine the minimum kitchen hood exhaust cfm. 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. Factor built commercial exhaust hoods which are tested in accordance with ul710 listed labeled and installed in accordance shall not be required to comply with sections.

You may outgrow a 24 broiler and swap it out with a 36 or larger model and thus would need the hood to be larger. View the kitchen exhaust duct sizing chart below to determine your ductwork diameter based on range hood cfm. A grease duct is a duct that is connected to the kitchen exhaust hood and is specifically designed to vent grease smoke and other harmful contaminants from commercial cooking equipment to the outside of a building.