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NYC Fuel Gas Code

§ 504.2.8 — § 504.2.8

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What is NYC FGC § 504.2.8?

Quick Answer

This section specifies the criteria for determining vent capacity based on the diameters of vertical vents and vent connectors. It establishes that the vertical vent diameter is used for minimum capacity, while the connector diameter is for maximum capacity. Applies to building owners managing venting systems for appliances.

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

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504.2.8 Vent area and diameter.

FGC § 504.2.8

Where the vertical vent has a larger diameter than the vent connector, the vertical vent diameter shall be used to determine the minimum vent capacity, and the connector diameter shall be used to determine the maximum vent capacity. The flow area of the vertical vent shall not exceed seven times the flow area of the listed appliance categorized vent area, flue collar area or draft hood outlet area unless designed in accordance with approved engineering methods.

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