SC Heating Practice Questions - South Carolina Heating Contractor Examination Exam

A listed flexible air connector, as distinct from a flexible air duct, is limited to which installation rules?

Unlimited length and free to pass through any floor Maximum length 14 feet, and it shall not pass through any wall, floor, or ceiling Maximum length 3 feet, metal only Allowed only underground in PVC

Correct Answer:

Maximum length 14 feet, and it shall not pass through any wall, floor, or ceiling

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