Final answer:
False. Factory-built chimneys are not required to be of masonry construction.
Step-by-step explanation:
False. Factory-built chimneys are not required to be of masonry construction. Factory-built chimneys, also known as prefabricated or metal chimneys, are made of metal and are designed to be installed in homes or buildings. These chimneys are made of materials such as stainless steel, galvanized steel, or aluminum. They are pre-fabricated and are usually lighter in weight compared to masonry chimneys.
While masonry chimneys are built on-site using bricks, concrete, or stone, factory-built chimneys are assembled in a workshop and then transported to the site for installation. Factory-built chimneys are typically used for appliances that are more efficient and prevent most heat from escaping through the chimney.