This entry was posted in diy and tagged diy gas fireplace gas valve pilot light thermocouple thermopile won t light on october 21 2012 by steve jenkins updated 2117 days ago disclaimer as with all my diy posts anything you decide to do as a result of reading this post you do so at your own risk.
Gas fireplace thermocouple vs thermopile.
When turned on the pilot in a gas stove generates heat which travels through a thermocouple.
Cleaning the thermocouple is a pretty simple process but should only be done when the fireplace is turned off and is completely cool.
This article describes thermocouples safety devices used on gas fired heating equipment.
Thermocouples on heating appliances.
As the heat reaches the second junction of the thermocouple it generates electrical voltage.
Gas fireplaces and fireplace inserts use thermocouples and thermopiles primarily to generate electricity.
Thermocouple fireplace by will gish.
The thermocouple on a gas fireplace may eventually become clogged with dirt and soot which can reduce the effectiveness of the thermocouple and may eventually prevent the fireplace from lighting as expected.
A second valve in the valve train.
Thermocouples are also used in homes offices and businesses as the temperature sensors in thermostats and also as flame sensors in safety devices for gas powered appliances.
The thermocouple on your gas fireplace is a heat sensitive device that keeps the pilot gas tube open while the pilot is lit.
In heating systems a thermocouple is one junction of metals that when heated by a pilot flame generates approximately 25 mv and holds open an electromagnetic valve to allow gas to pass as long as there is a pilot.
750 temperature resistance millivolt replacement thermopile generators used on gas fireplace water heater gas fryer cluster thermocouple for 24 fireplace 4 2 out of 5 stars 53 8 29 8.
This article explains what a thermocouple or thermopile is how these devices work where they are installed and what goes wrong with thermocouples.