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2. Here's What to Do If Your Fireplace Pilot Light Goes ... - AOL

   www.aol.com/heres-fireplace-pilot-light-goes...

   The thermocouple sensor detects the heat from the pilot light and sends a signal to keep the gas valve open, but if the pilot light is extinguished, then the thermocouple will send a signal to the ...

3. Gas stove - Wikipedia

   en.wikipedia.org/wiki/Gas_stove

   Gas stoves today use two basic types of ignition sources, standing pilot and electric. [21] A stove with a standing pilot has a small, continuously burning gas flame (called a pilot light) under the cooktop. [21] The flame is between the front and back burners. When the stove is turned on, this flame lights the gas flowing out of the burners.

4. Pilot light - Wikipedia

   en.wikipedia.org/wiki/Pilot_light

   A pilot light is a small gas flame, usually natural gas or liquefied petroleum gas, which serves as an ignition source for a more powerful gas burner. Originally a pilot light was kept permanently alight, but this wastes gas. Now it is more common to light a burner electrically, but gas pilot lights are still used when a high energy ignition ...

5. Industrial furnace - Wikipedia

   en.wikipedia.org/wiki/Industrial_furnace

   A furnace can be lit by a small pilot flame or in some older models, by hand. Most pilot flames nowadays are lit by an ignition transformer (much like a car's spark plugs). The pilot flame in turn lights up the main flame. The pilot flame uses natural gas while the main flame can use both diesel and natural gas. When using liquid fuels, an ...

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7. Thermocouple - Wikipedia

   en.wikipedia.org/wiki/Thermocouple

   So long as the pilot flame remains lit, the thermocouple remains hot, and the pilot gas valve is held open. If the pilot light goes out, the thermocouple temperature falls, causing the voltage across the thermocouple to drop and the valve to close. Where the probe may be easily placed above the flame, a rectifying sensor may often be used ...