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Gas

Thermopile

The voltage-generating sensor that powers a gas valve.

All glossary terms

What is Thermopile?

A bundle of thermocouples that produces millivolts of electricity when the pilot flame heats it, and that current is what drives the main valve in a standing-pilot gas fireplace. When we service one, the test tells the story: 650 to 850 mV reads healthy, while anything below 300 mV is failing and gets flagged.

Related terms:ThermocouplePilot Light

Need a thermopile inspection or repair?

We work on thermopile every week across DFW. CSIA-certified, written quotes, financing available.

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NFPA 211
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