How long should you turn on the hot water in a day?

Many people have the habit of keeping their water heater on all day to have hot water instantly without waiting. However, this not only increases the electricity bill but also puts a strain on the water heater.

How long should the water heater be on in a day?

The working principle of the water heater is to heat the heating element inside the tank to heat up the water. Normally, the water heater will have a safety thermostat that automatically turns off the heater when the water reaches a certain temperature (this temperature can be adjusted according to the user’s preference).

However, if the water is left for a long time, it will gradually cool down and the thermostat will turn on again to reheat the water. This process will repeat continuously until the power to the water heater is completely cut off. Therefore, if the water heater is left on all day, it will definitely consume a lot of electricity.

At the same time, continuously keeping the water heater on or leaving it on 24/7 can reduce the accuracy and lifespan of the temperature sensors in the water heater.

Therefore, before using it, you only need to turn on the water heater 15-30 minutes in advance, and the water heater will provide enough hot water to meet the needs of the whole family.

How long should the water heater be on in a day?

What are the disadvantages of leaving the water heater on 24/7?

During use, if the water heater is left on, it may pose a danger due to electrical leakage through the water source. Although the water heater is equipped with a thermostat to reverse the electric current if a leakage is detected to ensure user safety, this component is not regularly checked or newly installed.

The habit of keeping the water heater on all day causes the device to work at full capacity, which is one of the reasons for overload, leading to quick damage to the device and reducing its original performance, as well as significantly reducing the lifespan of the water heater.

Especially, leaving the water heater on 24/7 will greatly increase the cost of the electricity bill because the hot water is not used while it still needs to be heated multiple times.

Notes when using the water heater

Do not turn on the water heater while bathing: Before using it, you need to turn off the water heater switch to avoid the risk of electrical leakage that affects your safety and your family’s safety.

Use an earthing wire for the water heater: When installing the water heater, you should pay attention to the earthing wire, which is an important component to prevent electrical leakage from the water heater and minimize the risk of electric shock, which can be life-threatening.

Regularly clean and maintain the water heater: You should check and maintain the water heater regularly, about 1-3 years/time, to detect any defects and promptly fix them.

Use according to the actual needs: If there are 1-2 people, a water heater with a capacity of 15-20 liters is sufficient; if there are 3-4 people, a water heater with a capacity of 20-30 liters is recommended.

Do not leave the water heater on 24/7: Leaving the water heater on continuously will corrode the insulation layer, increasing the risk of electrical leakage. Therefore, it is recommended to only turn on the water heater 10-15 minutes before use.

Source: VTC.vn