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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. Pilot light - Wikipedia

   en.wikipedia.org/wiki/Pilot_light

   In natural gas furnaces, water heaters, and room heating systems, a safety cut-off switch is normally included so that the gas supply to the pilot and heating system is shut off by an electrically operated valve if the pilot light goes out. This cut-off switch usually detects the pilot light in one of several ways: A flame rectification device. [2]

4. Forced-air gas - Wikipedia

   en.wikipedia.org/wiki/Forced-air_gas

   Older furnaces sometimes relied on gravity instead of a blower to circulate air. [1]Gas-fired forced-air furnaces have a burner in the furnace fueled by natural gas.A blower forces cold air through a heat exchanger and then through duct-work that distributes the hot air through the building. [2]

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 ...

6. Gas burner - Wikipedia

   en.wikipedia.org/wiki/Gas_burner

   Propane burner used with forced air into a metal melting furnace. Propane burner with a Bunsen flame Oxy-Acetylene for cutting through steel rails Flame of a gas and oil, in a dual burner A gas burner is a device that produces a non-controlled flame by mixing a fuel gas such as acetylene , natural gas , or propane with an oxidizer such as the ...

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