Columbus Electric ETD5SS Line Voltage Thermostat, Heat or Cool. The Columbus Electric ET Series Two-Position Room Thermostat are wall mounted line voltage thermostats suitable for direct connection with any resistance heating elements and unit heaters. This thermostat has a snap action switch operated by a bimetal actuator and is available in single pole, double pole with positive off, two stage heat. Cooling only and heat or cool models. Thermometer comes as standard on all models.
Columbus Electric Thermostats Regulate the temperature of the upper levels of your building with an attic fan thermostat to control the flow of cool air intake and hot air exhaust. These cooling thermostats are ideal for use with attic ventilators, fans, and dampers. Columbus’ line of fan coil thermostats can control the operation of fan coil heating/cooling units.