HVAC Journeyman Practice Exam

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What is the required clearance for unlisted vented gas fireplaces at the sides and rear?

10 inches
12 inches
16 inches
18 inches

The correct answer is: 18 inches

In the context of unlisted vented gas fireplaces, the required clearance is crucial for ensuring safety and proper functioning. A clearance of 18 inches is mandated for the sides and rear of such fireplaces. This requirement helps to prevent potential fire hazards by allowing enough space for heat dissipation and minimizing the risk of combustible materials igniting. Additionally, maintaining this distance is essential for adequate airflow around the fireplace, which contributes to both safety and operational efficiency. It's important for HVAC technicians and installers to adhere to these clearance specifications to comply with local codes and manufacturer recommendations. Failure to observe the correct clearances could lead to not only code violations but also increased safety risks.