Fireplace Thermopile vs Thermocouple: What's the Difference?

By Fireplace Choice March 19, 2026 | fireplace repair gas fireplace parts millivolt pilot assembly thermocouple thermopile troubleshooting | 0 comments

If you have been troubleshooting a gas fireplace that will not stay lit or will not ignite the main burner, you have probably come across the terms thermopile and thermocouple. These two components are often confused because they look similar, are located in the same area of the fireplace, and...