How does an intermittent pilot system improve efficiency?

Prepare for the NATE Gas and Oil Forced-Air and Hot-Water Heating Systems Test. Review multiple choice questions, detailed explanations, and practical flashcards. Get ready for your certification!

An intermittent pilot system enhances efficiency by lighting the pilot only when needed. This mechanism means that the pilot light is not constantly burning, as is the case in traditional continuous pilot systems. Instead, the pilot will ignite only at the moment the main burner is required to heat the space.

This operation reduces unnecessary fuel consumption because it avoids the constant use of gas for a flame that is only needed intermittently. By limiting the time the pilot is actively burning, these systems can significantly lower gas usage, contributing to overall energy savings and operational cost reductions. Thus, the design reduces waste and directly supports improved efficiency in heating systems.

The other options, while they describe aspects of different systems, do not accurately reflect how an intermittent pilot system achieves improved efficiency. Continuous burning of the pilot or eliminating ignitors would not address fuel economy, which is a fundamental advantage of intermittent systems.

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