Which type of copper tubing is specified for the installation of the gas line?

Type K copper tubing is the correct choice for gas line installations due to its thicker wall construction, which provides additional strength and durability. This is particularly important in gas applications where the tubing must withstand pressure and potential external damages. The added thickness of Type K makes it less susceptible to leaks and is ideal for both underground and above-ground installations.

Understanding the different types of copper tubing is crucial. Type L, while commonly used in various plumbing applications, has a thinner wall compared to Type K, which may not offer the same level of protection needed for gas lines. Type M has an even thinner wall and is primarily used for heating and potable water systems, making it unsuitable for gas piping. Type T, while not as standardized in comparison to the others, generally refers to specific applications like refrigeration, which do not fit the needs of gas line installations. Therefore, the strength and resilience of Type K make it the preferred material for safely transporting gas.