SC Heating Practice Questions - South Carolina Heating Contractor Examination Exam

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Where all combustion air is supplied by a mechanical air-supply system, IFGC 304.9 requires outdoor air at not less than which rate?

0.10 cfm per 1,000 Btu/h of total input 0.35 cfm per 1,000 Btu/h of total input 1.0 cfm per 1,000 Btu/h of total input 50 cfm regardless of input

Correct Answer:

0.35 cfm per 1,000 Btu/h of total input

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