amps required for 220v baseboard
A 1500 Watt heater will cost the same to run whether it is 120 or 240 Volt. 240 Volt heating circuits are more common because, as the chart shows, you can place more heaters on a 20 Amp 240 Volt circuit (maximum of 3840 Watts) versus a 120 Volt circuit (maximum of 1920 Watts).6.hese 3 heaters would require 12/2 wire and a 20 Amp 2-Pole breaker if they were to all be placed on the same circuit. If more heaters are needed either run a new circuit or increase the wire and breaker size to accommodate the load.)5. 120 Volt heaters require 1-Pole circuit breakers; 240 Volt heaters need 2-Pole breakers.3. Use 2-wire cable with ground (Romex™ or BX).4. When placing multiple heaters on a circuit do not exceed the watt-age listed for the corresponding wire and circuit breaker size.hese 3 heaters would require 12/2 wire and a 20 Amp 2-Pole breaker if they were to all be placed on the same circuit. If more heaters are needed either run a new circuit or increase the wire and breaker size to accommodate the load.)5. Re: 220 V baseboard heater wiring. You said you wanted to hook up 3 (220v) heaters to one t stat. You said the heaters are (1) 1500 watts and (2) 500 watts. That is a total of 2500 watts. That is about 11 amps on a 220v line. You only need to use #12 wire and a 2 pole 20 amp breaker.Here's how to wire it. Start with a #12 romex, connect it to a 2 pole 20 amp breaker to your at your panel.Connect black wire to one pole of the 2pole breaker and the white wire to the other breaker. Mark the white wire with a piece of black tape to indicate it is being used as a hot. Ground the bare wire to the ground bar.ou only need to use #12 wire and a 2 pole 20 amp breaker. Here's how to wire it. Start with a #12 romex, connect it to a 2 pole 20 amp breaker to your at your panel. Connect black wire to one pole of the 2pole breaker and the white wire to the other breaker. Submit. · just now. Report Abuse. 240 volt electric baseboard heat is 250 watts per foot. 11 feet times 250 watts = 2750 watts. 12 guage wire is good for 20 amps but you only want to use 80% of the breaker capacity.So 16 amps X 240 volts = 3840 watts.ubmit. · just now. Report Abuse. 240 volt electric baseboard heat is 250 watts per foot. 11 feet times 250 watts = 2750 watts. 12 guage wire is good for 20 amps but you only want to use 80% of the breaker capacity. Amps = Watts/Volts = 4.16. The smallest breaker in a house panel is 15 amps. You will need a 2 pole 15 amp breaker. On a # 14 wire you can load that circuit up to 12 amps.ou need a 50 amp breaker for 120 volt operation, though 120 volt operation is not advised. You need a 30 amp breaker for 240 volt operation.      As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed. I would use #12. THHN #12 is rated for 30 amps. The minimum size wire that you can use, to save overhead costs, is #14 wire which is rated at 15 amps.Home wiring cable has a rating of 300 volts.Also the above answer is wrong, #12 is only rated at 20 amps. would use #12. THHN #12 is rated for 30 amps. The minimum size wire that you can use, to save overhead costs, is #14 wire which is rated at 15 amps. These 3 heaters would require 12/2 wire and a 20 Amp 2-Pole breaker if they were to all be placed on the same circuit. If more heaters are needed either run a new circuit or increase the wire and breaker size to accommodate the load.)5.hese 3 heaters would require 12/2 wire and a 20 Amp 2-Pole breaker if they were to all be placed on the same circuit. If more heaters are needed either run a new circuit or increase the wire and breaker size to accommodate the load.)5. 110 volt circuits are usually wired for 20 amps (sometimes 15 in older houses). Since Watts = amps x volts, a 15 amp circuit x 110 volts can handle a 1650 watt load, so a 1500 watt heater can safely be plugged into such an outlet. Compare this to a typical 220 volt circuit installed for baseboard heaters.hat is mainly because 220 volt heaters are installed on dedicated circuits that have enough amperage (usually 20 or 30 amps) so they can convert more electrical power to heat. But for a given amount of heat output, the baseboard heater will consume exactly the same amount of electricity as two plug-in 110 volt heaters. That is mainly because 220 volt heaters are installed on dedicated circuits that have enough amperage (usually 20 or 30 amps) so they can convert more electrical power to heat. But for a given amount of heat output, the baseboard heater will consume exactly the same amount of electricity as two plug-in 110 volt heaters.hat is mainly because 220 volt heaters are installed on dedicated circuits that have enough amperage (usually 20 or 30 amps) so they can convert more electrical power to heat. But for a given amount of heat output, the baseboard heater will consume exactly the same amount of electricity as two plug-in 110 volt heaters. Look on the baseboard heater for a manufacturer’s label listing the electrical requirements of the heater. If the label includes the wattage, use that value. If the label lists voltage and amperage but not watts, you can find the wattage by multiplying the volts by the amps with your calculator.ultiply the floor area by 10 to find the heater wattage needed for the room. For instance, a room 10-by-10 feet has a floor area of 100 square feet. Multiply 100 by 10 to get 1,000 watts. That is the electric baseboard heater power needed to heat the room.
20 to 30 amps