The Honeywell heating dial Baseboard Thermostat offers superior energy efficiency, so you'll know you're getting a good deal on your heating bill. The manual four-wire thermostat operates on 120-240 volt baseboard systems and can control up to 5,280 watts. This Honeywell Baseboard Thermostat's adaptability is enhanced with a non-polarized two or four-wire connection. It is UL and CSA approved for safety and comes with a simple dial-type mechanical control. This baseboard heater thermostat is designed for use with electric baseboards, convectors, and fan-forced heaters.