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Amazon.com: LP Pilot Assembly with Thermopile and Thermocouple Compatible with FMI Desa Empire R3623 LPG8414 PP225 103778-01 14D0477 Propane Gas(LP) ODS Assembly Replacement Heater Parts, Log Heater/Fireplace : Home & Kitchen
At what efficiency would thermopiles have to be in order to make a generator that is fueled by ambient temperature? - Quora
![Two basic designs of a thermocouple (top) and a thermopile (bottom): a... | Download Scientific Diagram Two basic designs of a thermocouple (top) and a thermopile (bottom): a... | Download Scientific Diagram](https://www.researchgate.net/publication/255710457/figure/fig1/AS:542107515719680@1506259911954/Two-basic-designs-of-a-thermocouple-top-and-a-thermopile-bottom-a-transverse.png)