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20 amp is perfect, 15 is fine

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Q: What size breaker for 120 volt 2500 watt water heater?
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Related questions

What size breaker is needed for a 220 v hot water heater?

The wattage of the water tank is needed to size the breaker and the wire to feed the tank.


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10/3 wire with 30 amp double pole breaker from panel box to water heater.


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Can I you use existing 8 3 wire hooked to a 30amp breaker was hooked to old electric heater to wire a heater that requires 10 2 wire its a 5000watt 240volt heater?

Yes the wire size is larger for that size breaker but will not effect the 30 amp breaker protection of that circuit.


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To answer this question the wattage of the heater is needed.


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