How do you wire a gas fireplace switch?
Also, how does gas fireplace switch work?
When the thermocouple is heated by the pilot light, it generates a very small electrical voltage (millivolts) which can be run through a switch to turn on a Milli-volt gas valve (as opposed to a 24 volt gas valve used with a conventional thermostat).
Secondly, how does a thermopile work in a gas fireplace?
If your pilot light stays lit, but the fireplace won't start, then the problem is likely related to your thermopile, a metal probe (round and slightly smaller than your pinky finger) that converts heat from the burning pilot light's flame into a tiny amount of electricity — just enough to open the gas valve when a
Ventless fireplaces fueled by gas or propane rely on indoor air for combustion, and they exhaust a low level of their combustion gases into the room in which they're located. A chimney or flue isn't necessary. The risk to your health is a long-standing and ongoing debate.