100165784 | THERMOPILE USN/UTN | Lochinvar & A.O. Smith

**THERMOPILE USN/UTN** Lochinvar and A.O. Smith's THERMOPILE USN/UTN is a key component in various water heating appliances such as boilers and water heaters. This thermopile serves as a safety feature, monitoring and regulating the flame's ignition and intensity. Composed of multiple thermocouples connected in series, it generates a voltage proportional to the flame's temperature. The USN/UTN thermopile is specifically designed for use in thermocouple gas valves and features a temperature range of up to 140 degrees Fahrenheit (60 degrees Celsius). Its compact size and robust construction allow for installation in a range of models, ensuring compatibility and reliable operation. By continuously monitoring the flame's condition, the thermopile ensures safe and efficient combustion, reducing the risk of accidents and optimizing energy usage.