As one of the appliances that we can not or lack, the water heater shoulders the use of all hot water in the home, but in the purchase, there are often many misunderstandings, at the same time, what kind of water heater is suitable for you? Perhaps, and career knowledge together to see will know.
Due to the special use of the water heater environment, when the user is wet, there is a small leakage current, life danger may occur, so that the safety issue is related to the life of the user, especially need to arouse the attention of consumers.
Consumer misunderstanding one: a passing water heater = a safe bath
With the increasing popularity and maturity of electric water heaters in the Chinese market, the entire electric water heater industry claims that the problem of electricity safety has been fully solved. And consumers are also more recognized by this statement, that the product of the electric water heater passes, bathing is to eliminate worries. However, the recent occurrence of a number of electric shock caused by water heaters can not help but make people ask the question: Is the water heater really safe? What is the cause of these accidents?
The scale of China’s electric water heaters is equivalent to the IEC (International Electrotechnical Commission) scale accepted in Europe. And this scale it requires that the ground line in the user’s home must be superior, and our country due to historical reasons from many building grounding system is not superior, or even lack, such as decoration of the wrong line, line aging, private wire, the use of inferior switch socket, water pipe when the ground line, etc., these may lead to the ground wire, resulting in electric shock accident. Consumers don’t know this. In this use environment, even the IEC honed water heater can not guarantee a safe bath.
Consumer misunderstanding two: The use of the electric discharge cherisher can thoroughly cherish the bath and peace.
To annotate this misunderstanding, it is necessary to first understand the principle of the leakage device: the front line and the neutral line in the power line enter the water heater through the leakage device, the water heater is in the state of affairs, once the internal electrical leakage occurs, the leakage device can cut off the power in 0.1 seconds to prevent the current from continuing to enter the water heater.
However, the power line of the water heater also includes a ground wire not through the leakage precious device, theoretically the ground wire is also set to ensure the safety of electricity, but if the ground can not rely on the decoration of the front line ground wire is reversed, line aging and other situations arise, because the ground wire does not pass the leakage precious device, then the current may be invincible through the ground wire to the water heater interior, Electrocution still cannot be prevented.
Consumer misunderstanding three: Unplug the power plug, bath can be safe.
Due to the repeated occurrence of electric water heater electric shock accident, consumers are worried about the use of electric water heaters naturally, so some smart consumers will be unplugged after the water heater is heated to hold a bath, and some manufacturers with insufficient confidence in their own products are also motivating consumers in the sales process.
However, in addition to being adjacent to the circuit, the water heater cannot be prevented from being connected to the water pipe. In some poorly grounded or basically no grounded construction, some people will connect the grounding wire with the water pipe, so that the water pipe acts as the grounding of the construction. In this case, if the electrical leakage in a household occurs, then the water pipe of the whole building is charged, and the user who is using the water heater to bathe, just pull the plug of the water heater, will still be hurt by the current introduced by the water pipe.
Consumer awareness misunderstanding four: the use of gas water heaters, solar water heaters do not exist safety hazards.
That would have been true a few years ago. But now, gas water heaters are forced by the state to accept the strong discharge technology; Solar water heaters generally use electric auxiliary heating, leakage hazards also exist, even more prominent.
The gas water heater accepts the strong discharge technology, and the mechanical interior needs to add an electric motor using 200V voltage, because the gas water heater is small in size, the internal components are set carefully, once the motor leaks, the probability of the current entering the water pipe is greater than the electric water heater, and the electric shock accident is more.
Solar water heater uses electric auxiliary heating, the heating principle is the same as the electric water heater, and the manufacturer specializing in the production of solar water heater electricity safety is usually not as professional as the manufacturer specializing in the production of electric water heater, so that the electric shock accident of solar water heater will be more than the electric water heater.
Which type of water heater is the market mainstream?
If you want to follow the crowd, first look at which manufacturers of what type of water heaters are patronized by others.
Certificate statistics, in the entire water heater market, storage electric water heaters accounted for 53% of the share, the market share of gas water heaters is about 30%, the share of solar water heaters is only 10%, the share of air source heat pump water heaters is less than 4%, that is, the share of hot water heaters is less than 3%.
Within the limitations of the world, the water heater sales list, the entry-level product of about 1,000 yuan is still the mainstream market. In the top 10, ranked in the most set of 700 to 1300 yuan range, there are 5 types of storage electric water heaters, 2 types of gas water heaters, that is, 3 types of hot electric water heaters; It should be noted that the top 10 models below 700 yuan are instant electric water heaters, and they are “small kitchen treasures”.
From this point of view, water storage electric water heaters and gas water heaters are still the mainstream of the market, and people are more willing to buy low-cost products.
Which type of water heater is right for me?
The real choice is based on the main consideration of their own economic conditions, energy conservation awareness, housing conditions and the number of family members.
From the point of view of economic conditions: housing prices are high, can afford to buy long-term investment, the purchase of heat pump water heater and solar water heater comparison value, although if the economic conditions are not strong such as loan pressure, hope to spend less money, then the purchase of water storage electric water heater and gas water heater comparison is easy.
From the perspective of energy conservation awareness: the rapid economic improvement, energy prices continue to rise, many white-collar workers consciously respond to the national construction of resource-saving society, the purchase of energy-saving products, you can choose to buy heat pump water heaters and solar water heaters.
From the perspective of housing conditions: when considering the purchase of heat pump water heaters and solar water heaters, it is as usual to consider the installation of solar water heaters in the north, and as usual to install heat pump water heaters in the south; If you live in suburban low-rise buildings or metropolitan high-rise buildings near the top of two floors, you can consider installing solar water heaters; However, it is usually recommended to install heat pump water heaters in high-rise buildings. When considering the purchase of storage electric water heaters and gas water heaters, if the bathroom and kitchen are only separated by a wall, and the ventilation conditions are good, then the gas water heater is suitable for comparison; If the bathroom and kitchen are separated by more than 5 meters, the storage type electric water heater is suitable for comparison.
From the point of view of family members, voucher bathing habits (number of baths, time, and number of people per bath) to consider the capacity of the water heater, as usual male members bathing water consumption of 60 liters is suitable for comparison. If some white-collar members want to use a bathtub, only the heat pump water heater can meet the needs.
Instant thermoelectricity is commonly thought of as providing hot water for the kitchen in winter, rather than for bathing.
