The Siemens Building Technology 134-1085 H/C Electric Line Voltage Room Thermostat is a reliable temperature control device designed for concealed or exposed installations. It operates by sensing room temperature and directly switching line-voltage power to heating or cooling equipment to maintain the desired setpoint. This thermostat is commonly used with electric heaters, fan coil u... https://www.partshnc.com/htcl-statline-volthvy-duty