Grease duct is both routed by way of a fire rated shaft enclosure or wrapped with an authorised hearth insulating blanket that permits for zero clearances, for instance that made by 3M. Duct installation needs a crystal clear length from combustible materials. NFPA 96 mandates that duct accessibility doors be https://commercialkitchenextracts68901.blog-kids.com/37170832/about-grease-tight-extract-ductwork