Overhang: The extraction Cover should overhang the cooking tools by at the very least 250mm at the front and sides. For combi-steamers or baking ovens, this improves to 600mm. In all circumstances the joints and seams might be welded, the only exception are Individuals manufacturing unit created duct systems as https://grease-tight-extract-duct35567.blogspothub.com/35979421/not-known-factual-statements-about-grease-tight-extract-ductwork