## How many kWh does a 50 gallon water heater use?

Calculating Energy Usage An average water heater runs three hours daily. A 50-gallon, 5,500-watt water heater with a . 90 EF and an electricity rate of $. 16 per kilowatt hour will cost $781 to operate each year.

### How many watts does a 50 gallon water heater use?

4500 watts

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 many kW is a hot water tank?**

A typical water heater will use around 4000 watts. Click calculate to find the energy consumption of a water heater using 4000 Watts for 3 hours a day @ $0.10 per kWh.

**How many BTU do I need for a 50 gallon water heater?**

36,000 BTUs

A common input is 34,000 BTUs on a 40-gallon tank and 36,000 BTUs on a 50-gallon tank. The higher the BTU input and efficiency, the faster the recovery. Electric water heaters typically have one 5,500-watt or two 4,500-watt elements.

## How many gallons can a 50 watt heater heat?

Therefore, a 10 gallon aquarium will need a 50 watt heater. As the tank size increases, the larger water volume is able to retain the heat better. If the tank size is 40 gallons or larger, the watts per gallon can be reduces to approximately 3.5….Aquarium Heater Size.

Aquarium Size | Heater Capacity |
---|---|

75-100 Gallons | 250-300 Watts |

### How long does it take a 50-gallon 4500 watt water heater to heat up?

Gas Hot Water Heater Recovery Water coming into a 50-gallon tank at 40 degrees takes just 53 1/2 minutes to reach 120 degrees. For 60-degree water entering the tank, calculate about 40 minutes needed for the water to reach the 120-degree temperature. For 70-degree water, it would take 33 minutes.

**How many kW is a 40 gallon water heater?**

Kilowatt hours of electricity needed to heat water the math formula:

Water heater Cost estimate | |
---|---|

Temperature of water | Cost if you use 40 Gallon per day |

Raise from 32° to 120° | 7.01 Kwh x 14¢ = $1.20 |

Raise from 50° to 120° | 5.58 Kwh x 14¢ = 78¢ |

Raise from 70° to 120° | 3.99 Kwh x 14¢ = 56¢ |

**Should I get a 40 or 50 gallon water heater?**

Typically, the rule-of-thumb is that you want a 40 gallon tank for 1 to 4 people, a 50 gallon tank for 4 to 6 people, and a 50 gallon high recovery or 75 gallon tank for 6 to 8 people. Energy consumption for 40 and 50 gallon standard water heaters is quite comparable.

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

You don’t have to worry about running out of hot water with a larger tank. 50-gallon water heaters have a longer lifespan. In general, 40-gallon heaters last for about eight years, while 50-gallon heaters can last 12 years. This is because 50-gallon heaters have thicker tanks.

### Is a 50 watt heater good for a 20 gallon tank?

Still, some fish tanks are quite large and could require more than one heater. That said, a 50 watts heater is adequate for a 20 gallons aquarium in a warm room (78° F), but the efficiency goes down in a colder fish tanks to only being useable in a 15-gallon fish tank.

**Is a 50 watt heater for 5 gallon tank?**

50-watt heaters are usually used to heat tanks between 3-10 gallons. While you can use a 25-watt heater for your betta tank they’re normally not as reliable. With that being said here are 5 of the best heaters for a 5 gallon betta tank.