What is the regulation regarding Single Wall Vent Connectors passing through floors, ceilings, or roofs?

The regulation stating that single wall vent connectors shall not pass through floors, ceilings, or roofs is based on safety considerations. Single wall vent connectors are designed for optimal venting performance within designated spaces, typically short distances in direct contact with the appliance they serve. When these connectors pass through structural barriers such as floors, ceilings, or roofs, it can create potential hazards.

The primary concern is that as these connectors are constructed of materials that may not withstand the high temperatures associated with the venting of combustion gases, they pose a risk of fire if they come into contact with combustible material. Additionally, vent connectors that penetrate ceilings or roofs can lead to improper venting, increasing the risk of carbon monoxide exposure and other harmful emissions if they are not properly installed.

This regulation helps maintain a safe environment and ensures that all venting is managed appropriately while mitigating risks associated with improper installation or use of unsuitable materials. Compliance with this regulation is essential for the safe operation of gas appliances and overall system integrity.