What does the term "Gas Piping" refer to?

The term "Gas Piping" specifically refers to a system or installation used for conveying fuel gas, such as natural gas or propane, from the supply source to appliances that utilize gas for heating, cooking, and other purposes. This involves various materials and safety considerations to ensure that the gas is transported safely and efficiently, minimizing the risk of leaks and complying with relevant codes and regulations. The other options pertain to different types of piping or ductwork unrelated to the conveyance of fuel gas. For instance, water supply lines are intended for transporting potable water, electrical piping is designed to house electrical cables, and air conditioning ducts are used for distributing conditioned air.