# FAQ: What Size Breaker For 30 Gallon Water Heater?

## How many amps is 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.

## What size breaker do I need for my water heater?

Multiply the value for current by 125 percent to determine the size of the breaker you need for the heater. A 1500-watt heater on a 120-volt circuit thus needs a breaker of 15.6 amps. Because a 15-amp breaker would be too small, you need a breaker with the next highest rating, which is 20 amps.

## What size breaker does a 40 gallon water heater need?

Generally, for a 40-gallon electric heater, you’d need a 30A double pole breaker. Those should be paired with 10-2 non-metallic cables. However, make sure that you have a 240 volt dedicated circuit for your water heater.

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## Can I use a 40 amp breaker for a 30 amp 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.

## 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).

## How many amps does a 60 gallon water heater use?

Requires 240 volt electricity (a 30 amp breaker, with 10 gauge wire from the panel). Also available in a BC compliant model. Performance 60 Gal Electric Water Heater with 6 Year Warranty is rated 3.5 out of 5 by 6.

## How many watts can a 30 amp breaker handle?

A 30-amp outlet supplies 3,600 watts (30 amps multiplied by 120 volts). Therefore, the breaker on that outlet could meet code and still trip anywhere between a total load of 2,880 watts (80 percent of 3,600 watts) and 4,320 watts (120 percent of 3,600 watts).

## What is the downside of an electric tankless water heater?

Tankless water heaters produce an endless supply of hot water, take up less space, have a lower risk of leaking, are safer, and have a significantly longer lifespan on average. The main disadvantage of tankless water heaters is their upfront cost (unit and installation) is significantly higher than tank-style heaters.

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## What wire do I use for a 30-amp breaker?

“Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for 30 amps, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”

## Does a hot water heater need its own breaker?

Generally, any equipment that runs on 220-volt power must have its own circuit. Water heaters usually need their own circuits as well. Tankless on-demand units must heat water quite rapidly, so they necessitate additional upgrades in many homes.

## Can I replace a 30 amp breaker with a 60 amp breaker?

It’s necessary to have at least 6 wire for a 60 Amp breaker. I believe the OP is thinking of doubling the capacity of the single breaker. When he returns with pictures, we’ll see. The answer isn’t yes.

## Can I use a 30 amp breaker instead of 20?

The answer is, ” No, do not put a 30 Amp breaker in place of a 20 Amp breaker because the wiring is most likely’sized’ for the 20 Amp load and -may- overheat if a 30 Amp load is used with wiring sized for a 20 Amp load.”

## Can you run a stove on a 30 amp breaker?

So as long as you have 30A or higher rated wire, there is no problem using a 30A breaker, so long as you can live with the occasional trip of the breaker if you put all four burners on at once (probably a very rare occasion).