If your gas fireplace won’t turn on at all or “if you are unable to keep the pilot light lit, contact a professional, since this could indicate a problem with your gas line or thermocouple ...

The trade-off is that the created thermocouple generates a small voltage but a ‘high’ current. However, when you cascade 16 junctions in series you can generate enough voltage to light up an LED.

To fix a thermocouple that’s too far from the pilot light, remove the emitter screen to expose the ignition housing. After ...