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15.1 ORDINANCE No. 163 that this draWing be made by the home office of the burner manufacturer but, in lieu of this, drawing may be made by the local representative in which case it must be certified by an officer of the manufacturer that it is approved b,y them. SECTION 3-18 INSPECTION AND TEST At completion of installation the installer shall adjust all equipment arid controls and, in the presence of the inspector, demonstrate the proper functioning of all equipment and .controls throughout the normal range of operation from minimum to maximum input. A combustion analysis shall be made to demonstrate proper combustion results throughout the operating range. Burners shall be able to demonstrate main burner flame retention without pilot stabilization but pilot shall be used in all cases. ARTICLE IV SECTION 4-1 INCINERATORS, DOMESTIC OR PORTABLE TYPE Portable or domestic incinerators or rubbish burners may be installed and vented into the same flue with gas-fired boilers, furnaces or heating devices providing the incinerator or rubbish burner installation conforms to the following requirements: (1) Incinerators, type and approval: Incinerators installed in conjunction with gas space heating devices and venting into the same flue . (a) shall be designed with gas or constant electrical auxiliary heating elements to facilitate the drying and combustion of garbage. (b) When gas fired shall conform to the Approval Requirement for Domestic Gas Fired Incinerators ASA-Z2l.6-l949 and bear the AGA label. (c) When equipped with electric heaters shall conform to standards established b,y Underwriters Laboratories and bear their label. The general construction features shall meet the requirements of the above standard for gas fired equipment. (d) shall be approved by the Gas Inspector, subject to a fee for approval of $25.00 payable with application. (e) shall be equipped with approved spark arresters. (f) shall be equipped with manufacturer's tag or name plate permanently attached stating fuel for which unit is designed and input rating. (2) Venting The vent from the incinerator shall be connected to' a. masonry flue by means of a smoke pipe constructed of metal suitable for operation at 18000 F. temperature. Where such smoke pipe is within 18" of combustible materials, such materials shall be provided with i" fireproof insulation. Where the masonry chimney is of Type A Underwriters construction and is provided with a glazed tile flue liner or a vitrified bell type flue liner installed with bells upward, of ample size for the load of the incinerator in addition to other appliances connected thereto but not less than 8" equivalent diameter, the metal flue liner required elsewhere in this ordinance may be omitted.