Prestige SOLO 110.pdf - Bloom Lake Farms

Combustion Air and VentingMethods of Accessing Combustion Air Into ASpace - Category IVIndoor Combustion AirNOTICEThe methods listed in this section foraccessing Indoor Combustion Airassume that the infiltration rate is adequateand not less than .40 ACH. Forinfiltration rates less than .40 ACH, referencethe NFPA 54 National Fuel GasCode for additional guidance.Opening Size and LocationOpenings used to connect indoor spaces shallbe sized and located in accordance with thefollowing see Fig. 1:inches of the bottom of the enclosure.The minimum dimension of air openingsshall be not less than 3 inches.- Combining spaces in different stories.The volumes of spaces in different storiesshall be considered as communicatingspaces where such spaces are connectedby one or more openings indoors or floors having a total minimumfree area of 2 sq. in./1000 Btu/hr oftotal input rating of all gas utilizationequipment.Outdoor Combustion AirBEST PRACTICEIsolating the combustion appliance roomfrom the rest of the building and bringingin uncontaminated outside air forcombustion and ventilation is alwayspreferred.Opening Size and LocationThe minimum dimension of air openings shallbe not less than 3 inchesOpenings used to supply combustion and ventilationair shall be sized and located in accordancewith the following:Fig. 1:All Combustion Air from AdjacentIndoor Spaces Through IndoorCombustion Openings- Combining spaces on the same story.Each opening shall have a minimumfree area of 1 sq. in./1000 Btu/hr of thetotal input rating of all gas utilizationequipment in the space, but not less than100 sq. inches. One opening shall commencewithin 12 inches of the top, andone opening shall commence within 12One Permanent Opening Method. See Fig. 2One permanent opening, commencing within 12in. of the top of the enclosure, shall be provided.The equipment shall have clearances of at least 1inch from the sides and 6 in. from the front of theappliance. The opening shall directly communicatewith the outdoors or shall communicatethrough a vertical or horizontal duct to the outdoorsor spaces that freely communicate with theoutdoors and shall have a minimum free area ofthe following:- 1sq. in./3000 Btu/hr of the total inputrating of all equipment located in theenclosures, and7