Lochinvar & A.O. Smith 100108462 18" Thermocouple

The Lochinvar & A.O. Smith 100108462 Thermocouple is an 18 inches long tool, which is used in HVAC systems in gas furnaces and water heaters. It functions by producing a tiny amount of voltage in the event of high temperatures, a characteristic that is quite essential for regulating the gas valve. When the pilot light is on, the thermocouple generates 25-30mV to keep the gas valve open; when the flame is off, the voltage decreases and the valve shuts to avoid gas leakage. This safety feature improves the dependability of the heating systems, preventing possible dangerous gas formation and improving the function of the systems.