Readers ask: How Many Amps For A Water Heater?

How many amps is a 40 gallon electric water heater?

Depending on the code, a 2500w heater w/240v will draw 2500/240 or 18.75 Amps and either 25 or 30 Amps.

How many amps does a hot water heater require?

Most electric hot water heaters are designed for 240 VAC. The de facto standard size heating element is 4,500 watts, which corresponds to 18.8 amps and 12.8 ohms.

How many amps does a 30 gallon water heater use?

The math shows that 5500 watt water heater is well within the safe maximum for a 30 amp breaker and 10 gauge wire. When heat exceeds circuit breaker rating, then the breaker trips. A 30 amp breaker with 10 gauge wire has 80% safe maximum = 24 amps.

How many amps does a 15 gallon water heater use?

1650 watts/120 volts= 13.75 amps. You need a 14 gauge or larger (12 gauge) wire and a 15 amp breaker for the heater. 1 of 1 found this helpful.

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Can I use a 40 amp breaker for water heater?

You cannot put a 40A breaker on #10 wire. If you are sure there is (at least) #8 wire all the way from the breaker to the water heater, you can just replace the 30A breaker with a 40A breaker, but if and only if you have verified the size of the wire throughout the entire circuit.

What size breaker do I need for a 4500 watt water heater?

30 Amp dual pole breaker and 10 Gage wire size are required for 4500 watt elements.

How many amps does a 6 gallon hot water heater draw?

6 gal., 120 VAC, 16.7 A Amps, Residential Mini Tank Water Heater.

What size breaker do I need for a gas water heater?

The standard for water heater circuits is #10, two conductors with ground (10/2) and a 30 amp circuit breaker for a water heater.

What size breaker do I need for a 50 gallon water heater?

The standard for water heater circuits is #10, two conductors with ground (10/2) and a 30 amp circuit breaker for a water heater. If you are running cable anyway, just run #10 and replace the breaker so it’s done right, once and for all.

How many amps does a 28 gallon water heater use?

The amperage is vital to ensure you do not overload your current home’s electrical system. The standard amperage for an electric water heater is 18.8 Amps with 240Volts, 4500 Watt. A gas water heater in average uses less than 12 Amps with 115Volts (US and Canada).

What size breaker do I need for a 30 gallon water heater?

The branch circuit needs to be calculated at 125% of the rated ampacity for this type of water heater to be considered a continuous load. In order to work on a 20 Amp OCPD, you will need a 25 or 30 Amp circuit.

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How many amps does a 80 gallon water heater pull?

This should be checked out first. A water heater will only draw depending on the wattage of the element(s). So your WH has 2 – 4500 watt elements. When only one runs it is drawing about 22 amps (208 is nominal voltage which is what you have in your building) 4500/208= 21.6 amps.

How many amps does a 10 gallon water heater pull?

10 gal., 120 VAC, 16.7 A Amps, Residential Mini Tank Water Heater.

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