Electric water heaters refer to the heating water heater with electricity as energy.It is one of the three large water heaters that are tied with gas water heaters and solar water heaters.The electric water heater can be divided into three types: heating power (also known as volume or heat storage), that is, thermal and hot -thermal type (also known as semi -water storage).
Electric water heater classification
Water storage
According to the installation method, it can be divided into wall-mounted (horizontal) electrical water heater and floor-to-ceiling (vertical) water heater. The volume of wall-mounted electric water heaters is usually 40L-100L, and the volume of the floor-to-ceiling water heater is usually more than 100L.Household water storage electric water heaters have the characteristics of convenient installation, large water output, and stable water temperature.There are many brands of water storage electric water and large quality differences. Most of the customers are non -professional, and it is difficult to identify.Experts remind consumers that the most important part of the water storage electric water heater is the inner tendon, which is related to the performance and life of the water heater. Customers must pay attention to the material of the inner organs and the performance of anti -corrosion resistance when choosing.[1]
Instant heat
That is, the heat -type electric water heater (also known as the fast thermal electric water heater in the industry) generally requires a current of 20, or even 30 amp, that is, the heat, the water temperature is constant, the heating efficiency is high, and the installation space is small.Internal low -voltage treatment can increase the downtale during installation. The product with high power is installed in the bathroom, which can be used for shower or washed. Generally, home uses energy saving and environmental protection.According to market demand, the hot electric water heater is further differentiated into shower and kitchen types (mostly known as kitchen treasures).
Faster
This is an independent category of electric water heater products that are different from water storage and thermal type.The main features of "fast -heat electric water heater":
3. Power line: 2.5-4 square millimeters;
4. Heating time: 3-8 minutes;
5. Working method: 1 preheating, you can supply hot water continuously, without the number of useless people;
6. Constant temperature mode: mechanical balance temperature, fully automatic intelligent constant temperature;
7. Other functions: anti -burning protection, anti -scald protection, anti -ultra -temperature protection, physical and anti -electric shield, splash -proof body, leakage electricity protection, hydropower separation, magnetic protection, hyperbone protection, water stop and reflux protection, as well asPower off memory function.
The main speed thermal water heaters include: pre -mockery electric water heater, 3D speed thermal water heater, and intelligent capacitance electric water heater.
Precautions for the use of electric water heaters
Pay attention to water quality problems with electric water heaters.The region of my country is vast, and the water quality in various places is very different.
For water storage electric water heater, it is best to use tap water for softened treatment.What is the hardness of the water quality? As long as you look at whether you often scald when you burn water in your home, it is clear at a glance. Water that is prone to scales should not be used directly for water heater (this is more important for gas water heaters).The high hardness of the water will cause thick stains around the electric heating device to reduce the heating efficiency. Due to the slowing heat transfer speed, it will also endanger the life of the electric heating device itself.In addition, the dirt layer of the water outlet pipe is continuously thickened, which will reduce the caliber of the tube and even block, causing a water heater failure.Therefore, the hardness of water is crucial. For those who have conditions, a small soft device should be added before the water heater inlet pipe to reduce the hardness of the water.By the way, water with high hardness is related to the content, heating temperature, pressure, and time in the water during the heating process, and it is also closely related to the structure and container of the electric heater.
For the hot electric water heater, the flow of water is heated, the water flow stops, and the temperature is generally controlled below 65 degrees. High temperature water will not gather in the fuselage, and there is no chance to scalce.
Inner tendon is the key to the electric water heater. The surface treatment of the inner product is very important. It is the main basis for determining the warranty of the electric water heater.The electric water heater sold in the mall mainly has the following three types of endinistship: anaerobic bronze inner biliary, which has an unparalleled good characteristic on the heating electric water heater: it has fast thermal conductivity, voltage resistance and corrosion, good ductility, antibacterial antibacterial, antibacterial, antibacterialBacterbinomy, etc., anaerobic heating systems are generally used in the hot electric water heaters in developed areas in Europe and the United States. Most international brands use the heating body of copper -produced thermal electric water heater. The special physical and chemical characteristics of copper materials are heated.The characteristics of fast and stable and high thermal efficiency are the most mature and stable heating bodies recognized in the worlds hot water heater industry in accordance with the trend of environmental protection.The stainless steel inner linery, the material is good, and it is not easy to rust, but the hidden dangers of the weld are not easy to find. After multiple thermal expansion and contraction, the chromium in the stainless steel will be corroded by chloride in the tap water.The enamel inner linery, the porcelain glaze on the surface of the inner linery is non -metallic material, does not rust, corrosion, and uses thick steel plates as gallbladder. It has strong pressure resistance.Longer.Consumers can choose to enamel inner orbate, and most of the manufacturers promise to replace them for more than five years.
In addition, in order to prevent the internal surface from being corroded, a magnesium rod is also equipped in the machine. Magnesium rods are used as sacrifice anode in the water heater.Because the metal activity of magnesium is higher than that of iron, when the magnesium rod and ordinary steel plate are exposed at the same time, the magnesium rods first corrode the steel plate instead of the steel plate, thereby achieving the purpose of protecting the steel.How long does it take to replace the magnesium rod? Depending on the water quality, the magnesium rod in the enamel inner bile water heater needs to be replaced for 1 to 2 years.Otherwise, once the magnesium rod is used up, the water heater will soon be corroded and leak.

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