The Honeywell CT87K Classic Round Non Programmable Thermostat is a reliable and efficient heating control unit suitable for a central furnace system. With a stylish white design and a 2-inch display, this thermostat features a dial control style for easy adjustment. It is compatible with most systems and has child-resistant resistance properties for added safety. This 2016 model offers overspeed protection and operates on 24V of corded electric power, making it a practical choice for any home heating needs.