Expert tips to see how to choose a satisfactory el

2022-07-22
  • Detail

As the temperature drops, winter is the peak season for the sale of water heater products. With the improvement of the living standards of the majority of consumers, electric water heaters have become an indispensable household appliance in ordinary family life. Facing the dazzling array of electric water heater brands on the market, many consumers often feel at a loss. How to choose a satisfactory, safe and durable electric water heater? In fact, as long as you pay attention to the following points when shopping, it is not difficult to choose a good electric water Shun

as the temperature drops, winter is the peak season for the sale of water heater products. With the improvement of the living standards of the majority of consumers, electric water heaters have become an indispensable household appliance in ordinary family life. In the face of a wide range of electric water heater brands on the market, many consumers often feel at a loss. How to choose a satisfactory, safe and durable electric water heater? In fact, as long as you pay attention to the following points when shopping, it is not difficult to choose a good electric water Shun

energy efficiency water heater xinnanyue ceramics

I. type selection

1. Selection of liner

the liner of electric water heater is the key to the quality of electric water heater. At present, electric water heater liners can be roughly divided into three grades: the stainless steel liner with the highest grade and the longest service life. The stainless steel liner is generally made of high-quality imported stainless steel materials, and adopts advanced tungsten argon arc welding, which can prevent weld oxidation, with a service life of more than 15 years. But the price of this kind of electric water heater is relatively high, which is suitable for families with relatively affluent economy. The mid-range is enamel liner. It is widely used in some European countries. It is made by coating and firing a layer of inorganic ceramic glaze on ordinary steel plate. It is not rusty and the cost is only 1/6-1/4 of that of stainless steel liner. If the manufacturing process is poor, it will lead to uneven thickness of glaze paste attached to different parts of the gallbladder, which is prone to porcelain falling. Once the porcelain falls off, the inner tank of the electric water heater will be corroded and perforated, affecting the service life of the electric water heater. This kind of electric water heater is affordable and suitable for ordinary families. The relatively low-grade galvanized liner is coated with curing resin. Because the liner is in the heating environment of 70-80 ℃, the curing tree finger is easy to hydrolyze, the anti rust ability of the zinc protective layer is poor, and the service life is short. Due to the low production cost, the price is also low

2. Selection of safety devices

since the use of electric water heaters is related to the personal safety of consumers, we must pay attention to the safety performance when choosing electric water heaters. Generally, electric water heaters should be equipped with makeup protection, dry burning prevention, over temperature prevention and over pressure prevention devices. High grade ones also have leakage protection, automatic disconnection without water and additional power-off indication functions. The pressure rating of water heater tank is generally 0.75mp? A (the model is different, and the rated value is also different). It is required that the overpressure protection device should reliably and automatically open the safety valve for pressure relief when the tank pressure reaches the rated value to ensure safety. The leakage protection device generally requires that the power supply can be quickly cut off within 0.1 seconds when the leakage current reaches 15mA. Buy products with great wall safety signs

3. Selection of heat preservation effect

the power of electric water heater is an aspect that consumers have to consider. The key to affecting the power consumption of water heater is the heat preservation effect, which should be taken into account when purchasing. The main factors affecting the insulation effect are the thickness of the insulation layer and the density of the insulation material. Consumers should try to choose products with a large thickness of the moisturizing layer and a large density of the insulation material, which can be compared and selected according to the manufacturer's product instructions

II. Capacity selection

capacity selection mainly considers factors such as household entrance and hot water consumption. 1. An electric water heater with a rated volume of 30-40 liters, suitable for continuous bathing for 3-4 people; The 40-50 liter electric water heater is suitable for 4-5 people to shower continuously; The 70-90 liter water heater is suitable for 5-6 people to shower continuously

III. additional functions

1. Constant voltage and constant temperature function

add an advanced magnetization thermostat at the outlet pipe of the electric water heater, which can solve the phenomenon of sudden cold and hot water temperature and avoid scalding accidents

2. Disk function

forms a magnetic field inside the magnetizer, improves the activity of water, and has a health care effect on human body

3. Anti corrosion and descaling function

since the water heater usually works under the water temperature of 70-80 ℃, the descaling function is particularly important

IV. brand selection

consumers must check the brand and after-sales service level of electric water heaters. Famous brand products are generally of good quality and after-sales service is good, and they can enjoy a series of services such as door-to-door installation and free machines

v. precautions for purchase

1. Appearance inspection

the baking paint on the outer surface should be uniform, bright in color, and free of falling off, dent, serious scratch, extrusion marks, etc; Various switches and knobs have beautiful shapes and fine processing; The writing on the dial shall be clear

2. Strictly prevent fake and shoddy products

fake and shoddy products often use fake trademarks and gadolinium packaging or fake the assembled brand as imported original goods. Generally, the appearance of such goods is rough, and the temperature rises slowly after power on, which cannot meet the standard requirements

济南不孕不育医院

成都男科医院

天津皮肤病医院

Copyright © 2011 JIN SHI