What areas must gas piping not be installed through?

Gas piping is crucial for safely delivering fuel to gas appliances, and certain areas are strictly off-limits for its installation due to safety hazards and code compliance. The correct choice highlights that gas piping must not be installed through air ducts and elevator shafts.

This restriction exists because air ducts are designed to distribute conditioned air, and the introduction of gas piping can pose serious risks. If there were a leak, the gas could be distributed throughout a building in the air supply, creating a dangerous environment. Similarly, elevator shafts are meant for vertical transportation and are not intended for containing utility lines such as gas piping. The potential for gas leaks in these areas could significantly increase the risk of fire or explosion, which is a primary concern for safety protocols.

By adhering to this guideline, it helps ensure the integrity of both the gas supply and the ventilation or movement systems within a building, ultimately promoting a safer environment for occupants.