Electric wall heaters require a dedicated circuit, and run on either 120 or 240 volts, with several wattage options. Black and white conductors ar ok for 120 volt… I've got new 12/2 cable from the main panel (240 v. 15 amp breaker) that runs 12 feet to a new 750 watt baseboard heater and then continues another 9 feet to a new 240 volt 2 pole thermostat. Base the wire selection on this number. When used as a 240-volt model, it uses up to 1,000 watts, 4.2 amps, 3,412 BTUs, and requires a 12 AWG wire. I have since realized mistake. If the wires are black and white the white wire MUST be pemantly marked red or black. Many would use 12-2 for the 4000 watt heater; 20 amps de-rated to 80% or 16 amps. There are two black wires coming out of the Cadet RM162 heater. For volt baseboard wiring you will have 2 hots and 1 ground; no neutral a WALL thermostat for your heater, follow the instructions below and the diagrams. This diagram from the Baseboard Owner's Guide, shows how to you can wire multiple heaters to one thermostat — if you're using volt. Turn the … Step 12. Generally, 1,000 watts = 100 square feet of heat. Each appliance needs a separate double-pole breaker. The 1500 Watt heater draws 1500/240 = 6.25 Amps and the 2000 Watt heater draws 2000/240 = 8.33 Amps. The 80% de-rating is required for continuouis duty devices. I am installing a Cadet RM162 heater that is 240 volts in a cabin on my property. There are various 240-volt receptacles, each made for specific amperages and appliances, so be sure to buy the right one for your application. Heaters are pure 240 volt devices and do not require a neutral so 3 wire cable is not required. In the baseboard wiring junction box, connect each supply wire coming from the thermostat to each loose heater wire. Replace the junction box cover. I bought 240 volt wire … Refer to the total amps for the heater. Each component ought to be placed and connected with different parts in particular way. 240 Volt Heater Wiring Diagram – 220 volt baseboard heater wiring diagram, 220 volt heater wiring diagram, 240 volt baseboard heater wiring diagram, Every electrical arrangement is made up of various distinct pieces. Electric Baseboard Heater Wiring (How to Install Baseboard Heaters) The diagram on the left illustrates two typical wiring scenarios for baseboard heaters with wall mounted single pole thermostats. If you wire it as 208-volt heater, it uses up to 750 watts, 3.6 amps, 2,559 BTUs, and requires a 12 AWG plug. This is safer than using a plug-in portable heater, which can overload an existing circuit. Single pole thermostats may be used with either 120-volt or 240-volt heaters while double pole thermostats only control 240-volt heaters. The wire size should be xx/2 WITH GROUND. Together these loads draw 6.25 + 8.33 = 14.58 Amps, which can safely be serviced by a 20 Amp breaker and 12/2 wiring, provided nothing else is connected to this branch circuit. The Stiebel Eltron CNS100-2 E can be wired as a 240- or 208-volt heater. My question is - did accidentally wiring a 240 heater to the 120 cause the heater to overheat and whine, or was it just a bad heater? DIY Wall Mounted Electric Heater with Thermostat. In this article, we’ll show you how to hard-wire a heater, which means you have to run a separate circuit to the main panel. Can you recommend a good in-wall heater for small bathroom? How large of an area your heater will cover depends on the wattage. Otherwise, the arrangement won’t work as it should be. Carefully tuck all wires into the wiring compartment, and mount the thermostat to the wall. Loads are generally connected in parallel across the 240 Volt mains. Try to get wire with black and red conductors for 220 volts. Step 13. 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