Gas Heat ESCO Practice Exam

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What is the recommended LP gas pressure supplied to the appliance gas valve?

10-11 in WC
11-13 in WC
13-14 in WC
9-11 in WC

The correct answer is: 11-13 in WC

The recommended LP gas pressure supplied to the appliance gas valve is typically in the range of 11-13 inches of water column (in WC). This pressure range is ideal because it ensures that gas appliances operate efficiently, providing the right amount of fuel for combustion while preventing issues such as improper ignition or incomplete combustion that can arise from pressures that are too low or too high. The specified pressure range is based on industry standards to ensure safety and optimal performance. For LP gas appliances, if the pressure is lower than recommended, it may lead to insufficient heating capabilities or failure to operate altogether, while pressures that are too high could damage the appliance and create safety hazards. Understanding the importance of maintaining the correct gas pressure is crucial for anyone involved in the installation, maintenance, or service of gas appliances, as it directly impacts both performance and safety.