What is the minimum gap typically found in a chimney chase?

The minimum gap typically found in a chimney chase is 2 inches. This distance is vital for ensuring safe operation and maintenance of the chimney system, as it provides adequate space for expansion and contraction of materials due to temperature fluctuations during use. Additionally, this gap helps to prevent heat transfer to combustible materials surrounding the chimney, reducing the risk of fire hazards.

It is important for the gap to be consistent with building codes and safety standards, which require this minimum distance to promote ventilation and ensure that no flammable materials are in close proximity to the chimney's surface. This safety margin allows for airflow around the chimney, which can help to dissipate heat and prevent overheating of surrounding structures.