Connect one factory wire to a hot power wire from the 240-volt circuit cable, and connect the other factory wire to the second hot power wire from the circuit cable. Note that in a standard 240-volt circuit, both the black and white wire serve as hot wires, since there is no neutral wire in this kind of circuit.
How do you wire a 240v thermostat with a heater?
Connect the ground wire from the heater to the ground wire from the service panel. Most 240 volt thermostats generally do not have ground wires. If yours does have a ground wire, connect it to the other two, making a three-wire connection. Secure with wire nut.
What size breaker do I need for a 240 volt heater?
Adding a 240-volt baseboard heater usually requires a new 20- or 30-amp double-pole circuit breaker and new circuit wiring to supply one or more heater units. This is a dedicated circuit that serves only the heater.
Does a wall heater need a dedicated circuit?
Wall heaters need a dedicated circuit, so you will need to install a new circuit breaker at the main panel and fish cable to the location of your wall heater.
How many 240v baseboard heaters can I put on one circuit?
A circuit running on a 20-amp double-pole breaker can have any combination of heaters up to 3,840 watt. You can install two 1,500 watt heaters if you use just one thermostat.
Where do thermostat wires go?
Thermostat Wiring Tips
If your thermostat controls your heat, you will have a white wire. The Y wire is yellow and connects to your air conditioning compressor. The G wire is green and connects to the fan. Rc and Rh: The red wire(s) are the power source for your thermostat.
Can I wire a baseboard heater to an electrical outlet?
No. Electric Baseboard heaters are not allowed under outlets. They also are not to be wired to general purpose branch circuits .
Can I use a 2 wire thermostat on a 4 wire system?
Replacing an outdated four-wire thermostat with a newer model that uses two wires is not complicated, once you purchase the thermostat from a home-and-garden shop or hardware store. The procedure to install the new thermostat is straightforward and does not require the assistance of a certified electrician.