How many liters should an electric water heater be – Discover and renovate with GroupSumi

How many liters should an electric water heater be?

3 minutes of reading

By GroupSumi

July 22, 2022

The electric water heater is a device that allows us to have hot sanitary water using electrical energy. When we need to buy an electric water heater, we wonder: if it is only for 1 person, do I need a 30-liter electric water heater or a 50-liter electric water heater? If we are a family... how many liters will we need?

In this blog, we help you choose!

How an electric water heater works

The electric water heater is connected to the home's cold water supply, fills its tank, and heats the water using an electric resistance contained inside until it reaches the desired temperature set by the thermostat. Once this temperature is achieved, the resistance of these electric water heaters turns off, although the temperature of the stored water is maintained. This is why when we need hot water and turn on the faucet, it immediately comes out at the desired temperature.

Now that you know this, you may be wondering how many liters an electric water heater should be so that the hot water in the tank or boiler of the electric water heater is sufficient for all the people living in the house to benefit from hot water immediately. We will explain it to you!

How many liters should an electric water heater be?

The liters of the electric water heater represent the capacity of hot water that these devices can store. And the more people living in a household, the more capacity will be needed. It is considered that our average consumption is 30-35 liters of hot water per person per day. This 35 liters includes showers, kitchen and sink faucets, washing dishes... For this reason, what we recommend is

Electric water heater 30 liters or electric water heater 50 liters for 1 person. Electric water heater 80 liters for 2 people. Electric water heater 100 liters for 3 people. Electric water heater 150 liters or 200 for 4-5 people.

Find the electric water heater that your home needs.

This is a suggestion taking into account the average consumption of each household member. However, to help us choose, we can think about our habits, for example: do we prefer a quick shower or long relaxing baths? Are there 3 people showering every day, or do we have the habit of doing it at the gym? Furthermore, and of course, we must consider differently if it is a commercial establishment where, for example, only a sink is needed. These situations can significantly affect our hot water consumption.

"Better to have more than to have less", you might think. That's right, it's never pleasant to run short on hot water. However, when buying electric water heaters with large capacities, we must keep in mind that the larger the heater, the longer it will take to heat the water, the more electricity it will consume, and the greater the expense when purchasing the electric water heater, as the prices of electric water heaters mainly vary based on capacity.

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