What is the required clearance to combustibles for an interior chimney?

The required clearance to combustibles for an interior chimney is 2 inches. This standard is crucial for ensuring safety and preventing any potential fire hazards that can arise from heat transfer. The clearance allows for adequate airflow around the chimney, helping to dissipate heat and minimize the risk of ignition of surrounding materials.

Regulatory codes, such as those developed by the National Fire Protection Association (NFPA), dictate these clearance requirements to protect property and lives. It's essential to adhere to this 2-inch clearance guideline when installing or inspecting an interior chimney system to maintain compliance with safety standards and ensure that the system operates effectively without posing a danger to combustible materials nearby.