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A typical 50 gallon electric water heater runs at 4500 watts. In an electric circuit of 240 volts, 4500 watts is equivalent to 18.75 amps.

## How much electricity does a 50 gallon water heater use?

According to the Department of Energy, based on the assumption that an electric water heater runs for an average of about three hours per day, a 50-gallon water heater, running at 5,500 watts, with an electricity rate of **$0.16 per kWh**, will have an annual operation cost of $781.

## How many watts does an electric hot water heater use?

A water heater heats up water in your home to provide you with hot water for your daily needs. Electric water heaters are typically running for 3 hours a day to heat water, newer more efficient models may run for only half the time during each day. A typical water heater will use around **4000 watts**.

## How many watts does a 55 gallon water heater use?

With a 55-gallon (nominal) tank delivering **4,500 watts**, the ENT-55 delivers a first hour rating of 72 gallons at an Uniform Energy Factor of 0.93.

## How many KW is a 50 gallon water heater?

**4622 kWh** for a 50-gallon electric tank with a 0.95 energy factor.

## Should I leave my electric water heater on all the time?

**It’s better to leave the hot water heater on all the time**, rather than turning it on and off. … As long as the tank has a good insulating jacket, it will keep the water hot all day, without needing to be constantly reheated.

## Is there a big difference between a 40 gallon and 50 gallon water heater?

With the energy factors being equal, the difference in cost of running a 50-gallon heater over a 40-gallon heater is **essentially insignificant**.

## Do electric water heaters use a lot of electricity?

But your hot water heater **uses a lot of energy**. Water heating systems are the second biggest user of electricity in your home. This is on average 18% of your electricity costs, according to the U.S. Department of Energy.

## How many watts does a 30 gallon electric hot water heater use?

Your average residential 30 or 40 gallon water heater is **4500 watts** and usually goes on a 30 A breaker.

## What size breaker do I need for a 40 gallon electric water heater?

A 40-gallon water heater should have an average 4500 Watt capacity and 240 V emf. Thus, a **25 or 30A breaker** is sufficient for a 40-gallon breaker. However, for your safety, we recommend getting a 30A breaker.

## 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 watts do you need to power a house?

In a typical home, essential items will average **5000 – 7500 watts** of power to run.