Can Type L vents be used for venting coal- or wood-fired appliances?

Type L vents are specifically designed for venting gas appliances and are built to handle high temperatures, making them suitable for appliances that burn combustible gases. However, Type L vents typically do not have the necessary construction or materials to efficiently vent coal- or wood-fired appliances.

Coal and wood-burning appliances produce different types of flue gases and require systems that can manage higher levels of corrosive byproducts and particulate matter, which might not be effectively handled by Type L vents. Instead, these types of appliances generally require a different venting system, such as a Type H or masonry chimney, that can tolerate the higher heat and corrosion resulting from the combustion process.

Thus, because Type L vents are not appropriate for coal and wood appliances, the answer is represented with "False" in this context.