The minimum duct thickness is defined by whatever code jurisdiction which the undertaking is situated in. Under are two code references related to the expected thickness and materials variety for grease ducts. Overhang: The extraction Cover must overhang the cooking devices by a minimum of 250mm for the entrance and https://commercial-kitchen-extrac90112.activablog.com/35984903/the-fact-about-commercial-kitchen-extract-systems-that-no-one-is-suggesting