When choosing between a masonry chimney and a prefabricated (prefab) chimney, it’s important to understand their differences in materials, installation, and maintenance.

•⁠ ⁠Flue Materials: Masonry chimneys are lined with clay flue liners, which are durable but can crack from heat expansion over time, requiring repairs. In contrast, prefab chimneys use stainless steel flue liners, which are more resistant to heat, corrosion, and cracking, making them longer-lasting and lower-maintenance.

•⁠ ⁠Installation: Masonry chimneys are built on-site, brick by brick, requiring skilled labor and more time, making them costly to install. Prefab chimneys, however, are pre-constructed in sections, allowing for faster, easier, and more affordable installation.

•⁠ ⁠Crown vs. Chase Cover: Masonry chimneys are capped with a chimney crown, usually made of cement, to prevent water damage. Prefab chimneys use a chase cover, a metal cap that protects the chimney structure. Chase covers can rust if made from lower-quality metal but are easier to replace than chimney crowns.

While masonry chimneys offer a traditional aesthetic and durability, they require more maintenance. Prefab chimneys are efficient, cost-effective, and quicker to install, making them a popular choice for modern homes.