Introduction: As an indispensable electrical appliance in family life, electric water heater has brought a lot of convenience to our lives.
However, during use, many people have doubts about whether electric water heaters need to be drained when they are not in use for a long time.
This article will answer this question in detail.
1. The pros and cons of not using the water vent for a long time
1. Pro: Prevent the growth of scale and bacteria
When the water in the electric water heater is not used for a long time, the water quality may deteriorate due to the accumulation of scale and impurities, and even bacteria may grow.
Venting the water can effectively reduce the growth of scale and bacteria, and ensure that the water quality is relatively good.
2. Disadvantages: It may lead to oxidation and corrosion of the inner tank
After the water is emptied, the contact time between the inner tank of the electric water heater and the oxygen in the air increases, which may aggravate the oxidative corrosion of the inner tank, thereby shortening the service life of the water heater.
2. Does the electric water heater need to be drained if it is not used for a long time?
1. It depends
(1) If the amount of water in the water heater is small, there is no need to empty the water.
Because after emptying the water, the air can easily enter the water tank, causing oxidation problems and causing damage to the water heater.
(2) If there is a large amount of water in the water heater and it is not used for a long time, the water cannot be circulated and bacteria are easy to breed.
At this time, it is recommended to drain the water to ensure the quality of the water.
2. Precautions
(1) Before draining the water, be sure to cut off the power supply to ensure safety.
(2) When the electric water heater is not used for a long time, it is recommended to close the tap water inlet valve, unplug the power plug, and keep the ventilation in the space where the water heater is installed smooth to prevent the electronic control parts of the water heater from being damaged by moisture.
(3) When it is not used for a long time in winter, the water should also be released to avoid freezing caused by too low temperature, and the inner tank and pipes should be burst.
3. How to use an electric water heater correctly?
1. Turn on and off at the right time
According to the needs of home use, the switch is made at the right time.
If you have someone in your home all the time and need to use hot water intermittently, you can turn on the electric water heater throughout the day.
If you don't use it frequently, just turn it on in advance when you need it, and turn it off in time when you run out.
2. Temperature regulation
During use, the temperature should be reasonably controlled.
If the temperature is set too high, it will not only heat up slowly, but also cause waste of electricity.
It is recommended to set the temperature in a moderate range.
3. Regular maintenance
The electric water heater should be maintained regularly, such as cleaning the inner tank and replacing the magnesium rod, etc., to ensure the normal operation and service life of the water heater.
Summary: Whether the electric water heater needs to be drained for a long time should be judged according to the actual situation.
On the premise of ensuring water quality and the service life of water heaters, reasonable use and regular maintenance of electric water heaters can make our lives more comfortable and safe.