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// CODE SNIPPET

503.10.3.2 Multiple Draft Hoods

NYC Fuel Gas Code 2014 > 5 Chimneys and Vents > 503 Venting of Appliances > 503.10 Vent Connectors for Category I Appliances > 503.10.3 Size of Vent Connector > 503.10.3.2 Multiple Draft Hoods
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For a single appliance having more than one draft hood outlet or flue collar, the manifold shall be constructed according to the instructions of the appliance manufacturer. Where there are no instructions, the manifold shall be designed and constructed in accordance with approved engineering practices. As an alternate method, the effective area of the manifold shall equal the combined area of the flue collars or draft hood outlets and the vent connectors shall have a minimum 1-foot (305 mm) rise.

Related Code Sections


503.10.3.2 Chimneys and Vents, Multiple Draft Hoods
For a single appliance having more than one draft hood outlet or flue collar, the manifold shall be constructed according to the instructions ...
NYC Fuel Gas Code 2008 > 5 Chimneys and Vents > 503 Venting of Equipment > 503.10 Vent Connectors for Category I Equipment > 503.10.3 Size of Vent Connector > 503.10.3.2 Multiple Draft Hoods
503.10.3.2 Chimneys and Vents, Multiple Draft Hoods
For a single appliance having more than one draft hood outlet or flue collar, the manifold shall be constructed according to the instructions ...
NYC Fuel Gas Code 2014 > 5 Chimneys and Vents > 503 Venting of Appliances > 503.10 Vent Connectors for Category I Appliances > 503.10.3 Size of Vent Connector > 503.10.3.2 Multiple Draft Hoods
503.10.3.2 Chimneys and Vents, Multiple Draft Hoods
For a single appliance having more than one draft hood outlet or flue collar, the manifold shall be constructed according to the instructions ...
NYC Fuel Gas Code 2022 > 5 Chimneys and Vents > 503 Venting of Appliances > 503.10 Vent Connectors for Category I Appliances > 503.10.3 Size of Vent Connector > 503.10.3.2 Multiple Draft Hoods
504.3.11 Chimneys and Vents, Vent Height Measurement
For multiple units of equipment all located on one floor, available total height (H) shall be measured from the highest draft hood outlet or flue ...
NYC Fuel Gas Code 2008 > 5 Chimneys and Vents > 504 Sizing of Category I Appliance Venting Systems > 504.3 Application of Multiple Appliance Vent Tables 504 > 504.3.11 Vent Height Measurement
504.3.12 Chimneys and Vents, Vent Height Measurement
For multiple units of appliances all located on one floor, available total height (H) shall be measured from the highest draft hood outlet or flue ...
NYC Fuel Gas Code 2014 > 5 Chimneys and Vents > 504 Sizing of Category I Appliance Venting Systems > 504.3 Application of Multiple Appliance Vent Tables 504.3(1) Through 504.3(7) > 504.3.12 Vent Height Measurement
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