Which of the following items should NOT be included in gas venting systems?

The item that should not be included in gas venting systems is electrical conduit. This is because electrical conduit is intended for housing electrical wiring and ensuring safe electrical distribution within a building. It is not designed to manage or direct exhaust gases produced by combustion processes.

Gas venting systems are specifically engineered to safely channel combustion gases out of a building. These systems typically include components like gas vents, combustion air ducts, and chimneys, which all play a role in ensuring that harmful gases are expelled adequately and that sufficient air intake for combustion occurs.

Including any electrical components such as conduit in gas venting systems could pose serious safety hazards. Electrical conduits can potentially interfere with the venting process, lead to electrical faults, or present fire risks when exposed to heat or gases, reducing the efficiency of the venting system and endangering safety.