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You need 12.5 Amps. For a continuous load you want to only have 80% of the current which would be 12 Amps. Best to go with a 20 Amp breaker.

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Q: What size circuit breaker for 1500 Watt heater?

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15 amp

A 400 watt heater can safely be used on a 15 amp circuit. The size breaker needed for a circuit is determined by the size of the wiring in that circuit. AWG #14 wire requires a 15 amp breaker. AWG # 12 wire requires a 20 amp breaker.

AWG 12/2 with ground on a dedicated circuit with a 20 amp breaker. That will safely supply 1920 watts of continuous power.

20 amp breaker 12 gauge wire assuming its 120 volt

A 1500 Watt heater will pull about 12.5 Amps. Tour circuits in apartment will be 15 A and 20 A. Provided you don't have too much of a load on the same circuit, it should work.

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15 amp

A 400 watt heater can safely be used on a 15 amp circuit. The size breaker needed for a circuit is determined by the size of the wiring in that circuit. AWG #14 wire requires a 15 amp breaker. AWG # 12 wire requires a 20 amp breaker.

AWG 12/2 with ground on a dedicated circuit with a 20 amp breaker. That will safely supply 1920 watts of continuous power.

AWG 12/2 with ground on a dedicated circuit with a 20 amp breaker. That will safely supply 1920 watts of continuous power.

A 30 amp breaker wired with AWG #10 wire.

20 amp breaker 12 gauge wire assuming its 120 volt

A 1500 Watt heater will pull about 12.5 Amps. Tour circuits in apartment will be 15 A and 20 A. Provided you don't have too much of a load on the same circuit, it should work.

A 1000 watt generator cannot run a 1500 watt ceramic heater without having problems.

You can draw up to 3,300 watts from a 220V 15 Amp circuit. So the 1,800 watts you are drawing is fine.

Electric garage heaters come in several sizes. A 1500 Watt 120 volt plug in heater would need a 15 amp circuit with 14 gauge wire for temporary use. A 5000 watt 240 volt heater would need a dedicated 25 amp circuit breaker and a 10 gauge wire. Every home is different and this is intended as a general reference only. Seek competent professional advice for your specific application.

if it's a 240v heater. 1500/240=6.25amps.

Selectable 600 Watt, 900 Watt, or 1500 Watt

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