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What is NYC AC § 27-870?

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This section outlines the construction requirements for chimney connectors, specifying that they must be made of galvanized steel of a certain thickness and include cleanout doors. It prohibits the use of tile pipe as a chimney connector. Applies to building owners responsible for chimney installations.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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§ 27-870 Chimney connector construction.

AC § 27-870

Chimney connectors except those serving incinerators shall be constructed of galvanized steel of thickness conforming to the requirements listed in subdivision (a) of this section or of equivalent materials. Cleanout doors of the same material as the connector or other equivalent means shall be provided for the cleaning of connectors. Tile pipe shall not be used as a chimney connector.

(a)Thickness of metal. The thickness of galvanized steel for chimney connectors shall be not less than that given in table 15-7. TABLE 15-7Required Thickness of Galvanized Steel for Connectors Galvanized Sheet Gauge No.Area of Connector Sq. In.24 less than 7922 80 to 15420 155 to 20016 Over 200 (b) General. All chimney connectors shall be as short and as straight as possible consistent with their use and the required draft conditions. No chimney connector shall pass through a floor or ceiling construction.

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