How is an intermittent pilot ignited during operation?

An intermittent pilot is designed to ignite automatically each time the burner starts. This feature enhances safety and efficiency by ensuring that the pilot flame is only present when it is needed for combustion. When the thermostat calls for heating, the system activates the gas flow to the pilot and to the burner, allowing the pilot flame to ignite. Once the pilot is lit and verified, the main gas valve opens to allow the burner to operate.

This method is advantageous because it conserves gas; the pilot doesn't stay lit at all times, which reduces fuel consumption and minimizes the risk of gas leaks when the system is not in operation. The automatic ignition system is typically coupled with safety mechanisms that ensure the burner ignites only if the pilot is successfully lit, further enhancing operational safety.