What is expected of a chimney connector when attached directly to the chimney?

A chimney connector is a crucial part of a venting system that transitions flue gases from the appliance to the chimney. When attached directly to a chimney, the primary expectation is that it must not pass through walls. This is because a chimney connector designed to carry flue gases should maintain the integrity of the ventilation system and ensure that heat is effectively directed up the chimney, minimizing the risk of fire hazards.

When a chimney connector passes through walls, it can present numerous safety risks, including the potential for heat buildup, which may ignite surrounding materials, and an improper sealing that could lead to flue gas leaks into the living space. Such installations also contradict typical building codes and safety regulations, which usually mandate that connectors remain visible and accessible for inspection and maintenance.

The other options, while they may address specific installation concerns, do not align with the fundamental safety and operational principles outlined in the regulations governing chimney connectors. Therefore, the correct requirement when connecting to a chimney is that the connector must not traverse through walls.