What is the term for piping used to distribute fuel gas to appliances?

The term specifically used for piping that distributes fuel gas to appliances is "Fuel Gas Piping." This term is widely recognized in the industry and is used to describe the system of pipes that safely deliver natural gas or propane from the main supply to the various gas appliances within a building, such as furnaces, water heaters, and stoves.

The standard terminology emphasizes the safety and function of the piping system, which must comply with specific codes and regulations to ensure safe operation. The designation "Fuel Gas Piping" reflects the material, installation methods, and usage requirements that are crucial for maintaining the integrity of gas service in commercial and residential buildings.

Other options, while they may seem relevant, do not accurately capture the standard terminology used in codes and regulations governing the distribution of fuel gas. For example, while "Gas Distribution Piping" might convey a similar meaning, it lacks the specificity associated with fuel gas specifically. Additionally, both "Fuel Line Piping" and "Supply Piping" are less common terms in regulatory language and might refer to different types of systems or applications unrelated to fuel gas distribution. Thus, "Fuel Gas Piping" is the most precise and appropriate term for this application.