Barbecue Fire bricks, also known as BBQ Grill Tiles, are large porous bricks used as barbecue heat diffusers in gas grills. Their large volume enables them to retain a lot of heat and maintain a steady grilling temperature.
BBQ Fire Bricks can be made of two types of materials – clay and ceramic.
The clay tiles are affordable and come without holes across their surface. However, they don’t last very long and are difficult to clean after use.
Ceramic tiles, on the other hand, have holes that make it easy for you to snap it into any size to perfectly fit your grill. Ceramic grill tiles also have the best heat holding capacity amongst all heat diffusers.