What should be done if a grease duct is too close to a combustible wall?

When a grease duct is positioned too close to a combustible wall, building clearance reduction panels is the appropriate solution. These panels are specifically designed to provide a barrier that protects nearby combustible materials from the heat produced by the duct. By implementing clearance reduction panels, the distance between the duct and the combustible surface can be effectively managed to ensure fire safety and compliance with building codes.

The use of clearance reduction panels allows for maintaining necessary clearances while still ensuring the efficient operation of the duct system. These panels typically utilize materials that can withstand higher temperatures, thus reducing the risk of ignition of the combustible surfaces they protect. This is crucial for fire prevention, especially in commercial cooking environments where grease ducts are prevalent.