No portion of a venting system shall extend or pass through which of the following?

Prepare for the Propane Certification Test. Study with targeted flashcards and multiple-choice questions, each offering hints and insights. Ensure your readiness for the exam!

A venting system is crucial for safely directing combustion by-products away from appliances and out of living spaces. The correct answer indicates that no part of a venting system should extend or pass through a fabricated air duct or furnace plenum.

This is essential because venting systems are designed to channel harmful gases such as carbon monoxide and other combustion by-products. If a vent passes through a fabricated air duct or furnace plenum, there is a risk that those harmful gases could backflow into the duct system or plenum, leading to a potential safety hazard. Proper separation ensures that combustion gases are vented outside the building without risking contamination of the air supply that the furnace or other appliances may use.

In contrast, outdoor air intake, electrical conduit, and building exterior walls can have specific guidelines that might allow for some interaction with venting systems, provided they meet code requirements. However, having a vent pass through an air duct or plenum directly contradicts safety protocols and can lead to dangerous situations.

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