VENT SYSTEM
DO NOT obstruct the flow of flue gases from the flue located on the rear of the oven. It is recommended that the flue gases be ventilated to the outside of the building through a ventilation system installed by qualified personnel.
Ovens may use an optional down draft diverter flue method. This optional down draft diverter must be purchased from the oven manufacturer and vented to the outside; otherwise, the installation of any such devise will void all oven certifications and warranties. When the diverter is supplied, it may be connected to a Type “B” vent.
From the termination of the flue to the filters of the hood venting system, a minimum clearance of 18" (457mm) must be maintained.
Information on the construction and installation of ventilating hoods may be obtained from the standard for "Vapor Removal from Cooking Equipment," NFPA No. 96 (latest edition), available from the National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.