What should a chimney connector of a low, medium, or high heat industrial appliance not pass through?

A chimney connector of a low, medium, or high heat industrial appliance should not pass through a combustible wall or partition due to safety concerns. Combustible materials, such as wood or other flammable substances, can ignite if they are subjected to the high temperatures produced by the chimney connector. The risk of fire is significantly increased when a chimney connector penetrates combustible materials without proper insulation or clearances.

In contrast, non-combustible or insulated walls can either withstand higher temperatures or provide necessary insulation to prevent heat transfer that could lead to ignition. Concrete and metal walls, for instance, are typically designed to handle the heat generated without posing a fire hazard, making them safer options for chimney connector passages. This distinction highlights the importance of adhering to safety codes and regulations aimed at preventing fire risks in industrial settings.