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Wiring the Baseboard Thermostat Connection
When connecting to a baseboard heater, you have a couple of options when it comes to the thermostat connection. Some prefer to add the thermostat in a junction box part way up the wall away from the heater. Others prefer the thermostat be placed on the baseboard heater itself. Either way, you'll need to connect the thermostat based on the whether it is a 120-volt or 240-volt connection. The thermostat simply acts like a switch, turning the circuit on and off. In the case of a 240-volt connection, the two hot leads from the breaker connect to the top two wires of the thermostat. The bottom two wire connect to the heater itself. Then connect the bare ground wire to the ground screw provided. It should be green in color.
Heaters, Connections, and Loads