Item of decision to guard kitchen exhaust ducts, ducts for smoke Regulate, as well as other air distribution systems Grease Exhaust Duct Welded Joints Canopy hoods have requirements to extend a minimum of six” beyond cooking floor, This is often to make sure the entrainment of any heat and smoke. https://grease-tight-extract-duct12334.techionblog.com/37001794/the-smart-trick-of-grease-tight-extract-ductwork-that-no-one-is-discussing