Which type of piping is approved for heating panels?

Type L copper tubing is the correct choice for use in heating panels due to its composition and durability. Copper has excellent thermal conductivity, which means it efficiently transfers heat, making it ideal for heating applications. Additionally, Type L copper tubing is thicker than other types of copper tubing, providing enhanced strength and lower risk of damage during installation and operation, thereby withstanding high-pressure systems typically found in heating applications.

In HVAC systems, the ability to resist corrosion and maintain integrity under varying temperatures makes Type L copper a reliable option. Its compatibility with various fittings and ease of soldering further enhance its practicality in heating panel installations.

Aluminum tubing, while light and capable of conducting heat, is generally not used in hot water heating applications due to potential issues with galvanic corrosion when in contact with other metals. PVC pipe, on the other hand, is not suitable for carrying hot fluids because it can warp or deform under high temperatures. Cast iron pipe, although strong and durable, is typically heavier and less flexible than copper, making it less preferred for certain modern heating applications. Therefore, being lightweight, strong, and resistant to corrosion while fulfilling the thermal transfer requirements solidifies Type L copper tubing as the optimal choice for heating panels.