Overhang: The extraction canopy should overhang the cooking equipment by a minimum of 250mm for the front and sides. For combi-steamers or baking ovens, this raises to 600mm. Accessibility doorways delivered in grease ducts are expected by code to allow with the periodic cleaning and inspection of the interior buildup https://commercial-kitchen-extrac56677.ltfblog.com/35676058/5-simple-techniques-for-commercial-kitchen-extract-systems