The Emerson Climate–White Rodgers 1E78-140-24V Heat Non-Programmable Digital Thermostat is a reliable temperature control device designed for single-stage heating systems. Powered by batteries, it features a clear digital display and simple controls for precise temperature adjustment. Commonly used with furnaces, boilers, and heat-only HVAC units, this thermostat ensures consistent co... https://www.partshnc.com/1e78-140-emerson-climate-white-rodgers-24v-heat-nonprogdig-batt