[Import] electric water heater purchase

Select an appropriate type

Select the most appropriate type of water heater Based on the household water consumption, and consider its internal structure. According to the internal structure, the electric water heater is divided into three types: Water Box, open outlet and closed outlet. Among them, the water tank without liner, poor thermal insulation performance, the amount of water is also small; the outlet open type with tap water pressure continuous supply of hot water, water temperature can be adjusted freely, the water is powerful, but the liner pressure is low, shower only; closed water heater exit, not only can shower, also can connect to the bathtub, access the kitchen, more convenient to use.

Determine proper capacity

When determining the water heater capacity, the main factors such as household population and hot water usage are considered. Generally, the rated volume is 30 ~ 40 litre electric water heater, suitable for 2 ~ Continuous shower for 3 persons; 40 ~ 50 litre electric water heater is suitable for 3 ~ 4 consecutive showers for use; 70 ~ The 90-litre electric water heater is suitable for 4 ~ 5 consecutive showers.

Select the liner that meets your needs

High-quality liner is the key to the quality of electric water heaters. Currently, electric water heater liner can be divided into stainless steel liner, enamel liner and galvanized liner. The price of stainless steel liner electric water heater is higher, the price of enamel liner electric water heater is moderate, suitable for-like family. The service life of galvanized liner is relatively short, and the price is also low.

Safety Device Performance

Because the electric water heater is closely related to personal safety, you must pay attention to the safety performance when selecting the electric water heater. Electric Water Heaters generally have Grounding Protection, anti-Dry Burning, anti-over-temperature, anti-Overpressure device, high-grade leakage protection and automatic disconnection without water, and power-off indication functions. Due to different models, the pressure rating of the water heater liner is also different. When the pressure of the overpressure protection device reaches the rated value, the relief valve should be reliably and automatically enabled for pressure relief to ensure safety. The leakage protection device generally requires that the power supply be quickly cut off within 0.1 seconds when the current leakage reaches 15 mA. Products with Great Wall safety signs should be purchased.

Thermal Insulation Effect

The power of electric water heaters is a factor that consumers have to consider. The key to affecting the power consumption of water heaters is the thermal insulation effect. The main factors affecting the thermal insulation effect are the thickness of the insulation layer and the density of the insulation material. Consumers should try to choose products with large insulation layer thickness and high density of the insulation material, which can be selected according to the product manual comparison.

Additional functions

The voltage regulator constant temperature function adds an advanced magnetization thermostat at the outlet of the electric water heater, which not only solves the problem of high and low water temperature, but also avoids burns.

The magnetization function forms a magnetic field inside the magnetization thermostat, which can improve the activity of water and protect the human body.

Cleaning function because the electric water heater is usually 70 ℃ ~ The scale-out function is particularly important when the temperature is 80 ℃.

Consumers of brand selection must understand the brand and after-sales service level of the electric water heater. The quality of famous brand products is good, and the after-sales service is good. They can even enjoy a series of services such as on-site installation and free migration.

Convenient maintenance

Some water heaters make it very difficult to disassemble the bottom of the design and maintenance ports to save materials. In this way, it is not easy for users to manually clear the dirt in the liner, cause inconvenience in routine maintenance.

Appearance check

Surface Paint should be uniform, bright color, no shedding, no dents or serious scratches, extrusion marks, etc.; various switches, knob shape beautiful, fine processing; dial and other handwriting should be clear. Counterfeit and shoddy products often use fake trademarks and packaging, or use assembled brands to impersonate imported original goods. Generally, the appearance is rough, and heating up slowly after power-on, failing to meet the standard requirements. Check whether the attachment is complete.

Power plug check

The wiring should be solid and intact, and there is no bad contact.

Power Check

Check whether the indicator light is on and whether the indicator is normal when the effluent is powered off. During constant temperature check, a certain temperature value is set first. When the set value is reached, the electric water heater should be able to automatically power off or switch power. If the above requirements are met, the constant temperature performance of the electric water heater is good.

Power Supply Conditions

Electric water heater power is generally 1500 W, the user to purchase, to determine the household electric meter rated current capacity must not be less than 10a, otherwise the electric meter should be replaced.

Installation site

Although electric water heaters are not as strict as gas water heaters, they are also safe to use.

1. First install the waterway and then the circuit. Waterway installation. First use special screws to fix the hook on the wall, hanging the water heater, and then install the mixed valve on the tap water pipe with the valve, the mixed valve and the water heater are connected with the inlet and outlet pipe, nut, seal ring.

2. Cleaning System. After installing the waterway, clean the entire system and install the circuit. The specific method is: Close the cold water valve, open the hot water valve, open the tap water valve, let the cold water into the water tank, when the mixed valve has water flow, can add large flow, rinse the water tank pipeline, and then open the cold water valve, wash the internal passage of the valve body, and then connect to the shower.

3. circuit installation. Power Switch is installed in a place 1 meters away from the water heater and 1.5 meters above the ground. Open
Water heater housing, connect the power cord, pay attention to select the appropriate power cord according to the power size, and connect the ground.

Source: http://blog.toohi.com/toohi/articles/1049.html