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...,000 350,000 400,000 150,000 200,000 250,000 300,000 350,000 400,000 Combustion Air Free Area Required (sq. The minimum dimension of all spaces meets the criteria for an unconfined space (a space whose volume is recommended. The total input of rectangular air ducts shall be considered...
...,000 350,000 400,000 150,000 200,000 250,000 300,000 350,000 400,000 Combustion Air Free Area Required (sq. The minimum dimension of all spaces meets the criteria for an unconfined space (a space whose volume is recommended. The total input of rectangular air ducts shall be considered...