1986-10-02 Plan Review - Laserfiche WebLink

Home Browse Search

PLAN REVIEW - 95 SOUTH BROWN ROAD October 2, 1986 Page 9 91. Chimney caps may be used on chimney liners providing they do not obstruct or impair the free emission of the products of combustion, are approved by the administrative authority. Sec. 7403 SBC 92. Single wall metal pipe shall be constructed of sheet steel not less than #20 gauge or other approved non-combustible corrosion resistant material. Shall be installed only for runs directly from the space in which the appliance is located through the roof or exterior wall to the outer air. Shall further meet requirements of SBC1303, 7409 as are applicable. Sec. 7403 SBC 93. Type B gas vents, shall be round in physical shape except as approved for B -W vents. For further specifications see Sec. 7404 of SBC 94. Outside gas vents and chimneys are not recommended for use in cold climates. When they must be used in these climates the material shall possess high insulation qualities or be adequately insulated. Sec. 7405 SBC 95. Vent connectors fc - conversion burners without draft hoods and unlisted appliances without draft hoods shall be constructed or not less than #24 gauge galvanized sheet. Sec. 7407 SBC 96. When two or more appliances are connected to a common vent or chimney, the effective area of each vent, connector shall be not less than the area of the applicant, draft hood outlet. Sec 7407 -c -SBC 97. Two or more gas appliances may be vented through a common flue or vent connector when necessary, if joined by "Y" fittings as close as practicable to the flue or vent and provided the size of the common flue or vent is sufficient to accommodate the total volume of flue gases. "Y" fittings shall be made so that the angle at which the vent connectors intersect is as small as possible and should not exceed 45 degrees. Sec 7407 -f -SBC 98. Vent connectors shall be firmly attached to draft hood outlets by sheet metal screws or other approved means. Joints of other than listed Type B gas vent materials shall be securely fastened by sheet metal screws. Sec. 7407 SBC 99. The mayimum length of an uninsulated horizontal run of vent connector shall not exceed 758 of the height of the gas vent, chimney or single wall metal pipe. Sec. 7407 SBC 100. Single wall metal pipe used as a vent connector shall not pass through any floor or ceiling. Sec. 7407 SBC 101. A vent connector shall not be connected to a chimney serving a fireplace unless the fireplace opening is permanently sealed. Ser. 7407 SBC