What material is recommended for piping if the vent installation is outdoors?

In outdoor vent installations, PVC (polyvinyl chloride) is recommended due to its excellent resistance to environmental factors such as moisture, temperature variations, and exposure to sunlight. PVC is also lightweight, easy to work with, and does not corrode, making it an ideal choice for outdoor applications where durability and longevity are essential.

Moreover, PVC can handle the pressure and temperatures typical in venting systems, ensuring that the system operates safely and effectively. The suitability of PVC for various gases and its compliance with relevant codes contribute to its recommendation as a reliable material for vent piping in outdoor installations. Other materials may not offer the same level of resilience against the elements or may require additional protective measures to maintain their integrity and functionality in an outdoor environment.