Rooms Large in Comparison with Size of Equipment
Rooms Large in Comparison with Size of Equipment : Rooms having a volume equal to at least 12 times the total volume of a furnace or air-conditioning appliance and at least 16 times the total volume of a boiler. The total volume of the appliance is determined from exterior dimensions and is to include fan compartments and burner vestibules, when used. When the actual ceiling height of a room is greater than 2. 44 m (8 ft), the volume of a room is figured on the basis of a ceiling height of 2. 44 m (8 ft)
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