According to different principles, water heaters can be divided into electric water heaters, gas water heaters, solar water heaters and air energy water heaters. Electric water heaters are divided into two types: water storage type and instant type (also called fast type). The electric water heater is characterized by convenient use, energy saving and environmental protection, and can continuously supply hot water.
Storage water heater
The storage capacity is divided into 30L, 40L, 50L, 60L, 80L, 90L, 100L and so on.
advantage:
The installation is simple, easy to use, and is not affected by the difference in gas pressure on the natural gas floor, and more and more users prefer it.
Disadvantages:
It is bulky and takes up space. It needs to be preheated before bathing. The waiting time is long, it is easy to grow scale, and it needs to be descaled once a year.
Instant electric water heater:
Advantages: hot water is fast, only 3 seconds; hot water is not limited, continuous hot water supply; small size, exquisite appearance; easy to install and use; how much electricity is needed for hot water, consumption Can be less.
Disadvantages: High power, need to reserve at least 4 square meters of wire.
Speed ​​hot water heater
Advantages: The hot water is fast and the hot water is large. It is an excessive product of water storage type electric water heater to instant electric water heater. It combines the advantages of both. The waiting time is not as long as that of water storage water heater. Generally, it is about 15 minutes, and there is no need to reserve 4 square lines. Electric water heaters are generally between 3 and 5 kW, and a 2.5 line is sufficient.
Disadvantages: Preheat 15 minutes before bathing.
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