What is the purpose of pilots?

• A. Provide the ignition source for premixed burners
• B. Regulate burner flame color
• C. Measure exhaust gas temperature
• D. Provide primary air for combustion

Answer: (A)

Pilots provide the ignition source for premixed burners. When fuel and air are mixed before reaching the burner, a reliable ignition flame is needed to start combustion, and the pilot flame serves as that steady, controllable ignition source to light the main burner. This ensures quick and safe lighting and helps prevent unburned fuel from accumulating. The pilot isn't responsible for regulating flame color, measuring exhaust gas temperature, or supplying the primary air for combustion.