Commercial Kitchen Exhaust Duct Size

Minimum duct size of 4 recommended duct size of 6 401 600 cfm.
Commercial kitchen exhaust duct size. 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. View the kitchen exhaust duct sizing chart below to determine your ductwork diameter based on range hood cfm. Are you interested in representing captiveaire and selling our products. Inventors of the positive pressure chimney system selkirk products meet and exceed the requirements of codes and other manufacturer products.
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. For commercial kitchen applications when not specified by code the following guidelines may be used to determine the minimum kitchen hood exhaust cfm. 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. Read on to determine how to size your exhaust and supply fans.
Sizing an upblast or exhaust fan. Kitchen exhaust grease duct. Also keep in mind that certain code dictates certain spacing between items. 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.
Leading manufacturer of chimney venting and air distribution products for commercial and residential hvac industries for over 80 years. Please fill out the following form and we will contact you soon. 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.