// CODE SNIPPET
§27-808 Flue Dampers
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Dampers in flues shall be constructed so that they cannot completely cut off the passage of flue gases at any time. Tight-closing dampers may be installed with approved automatic draft and combustion controls.
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§27-808 Heating and Combustion Equipment, Flue Dampers
Dampers in flues shall be constructed so that they cannot completely cut off the passage of flue gases at any time. Tight-closing dampers may ...
NYC 1968 Code (Vol I) > 14 Heating and Combustion Equipment > 9 Combustion Air > §27-808 Flue Dampers
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Section 634 Specific Appliances, Chimney Damper Opening Area
equal to or greater than specified in Table 634.1.
TABLE 634.1
FREE OPENING AREA OF CHIMNEY DAMPER FOR VENTING FLUE ...