Foreword
Since my position is category operation, and now I am responsible for the category of 3C household appliances are not the same as the previous FMCG, these goods are just needed, there are many pits, in order to better meet the needs of the work, I must be as familiar with the category knowledge as possible, for this reason I want to try to write this kind of dry goods content to do knowledge verification, if you see the content is wrong, please feel free to leave a message
OneCommon types of water heaters
At present, the water heaters on the market can be roughly divided into five categories, namely: storage electric water heaters, gas water heaters, air energy solar water heaters, small kitchen treasures, and instantaneous electric water heaters.
Storage type electric water heater
Gas water heaters
In a word: it needs to be connected to gas, which is generally installed in the kitchen, which can meet the water needs of the whole house, and the hot water can be obtained faster than electric water heaters.
Air energy solar water heaters
In a word: the amount of hot water is large and sufficient, and it is basically installed on the balcony roof, and most of it is used for villas in rural areas.
Little Chef Treasure
In a word: plugged in, installed above and below the kitchen sink, suitable for washing dishes in the kitchen or washing hands in the bathroom.
Instantaneous electric water heaters
In a word: high power, that is, it is hot, most of them are installed in the kitchen and bathroom, and the installation has high requirements for the line, and the general power will not be less than 6kw.
Second, how to choose an electric water heater
Preferred, you should select the capacity first according to the number of users, and the recommended capacity is different for different users.
Secondly, it is necessary to keep in mind the purchase points of various types of electric water heaters:
Ordinary electric water heater.
Power:When the capacity is the same, the greater the power is equal to the faster the heating speed, it is recommended to choose a model above 3000W.
Capacity:Family use is generally above 60L, and it is best to have a water volume increase function, which can support continuous use by multiple people.
Power Saving:Brainless selection of a level of energy efficiency, more power saving.
Smart wifi:APP function, continuous wifi to achieve remote control, can make an appointment for hot water in advance, no waiting.
Other Options:Functions such as anti-electric wall, water power outage, magnesium rod free replacement and so on.
Air energy water heaters
Pros:It is preferred for villas or large households, supports multi-point water use, and is more energy-efficient than ordinary electric water heaters.
Capacity Selection:50L for 2 people, 60L for 3-5 people, 80L for 6 people or more.
Precautions:Large-capacity models need to meet enough space for the external unit and water storage tank;In the north where the temperature is lower than -10°C, it is recommended to choose a model with electric auxiliary heating function.
Electric hot water faucet
Uses:To solve the problem of using water alone, it can be heated immediately by setting the temperature.
Efficiency:The higher the power, the faster the heating.
Purchase suggestion:Only buy products from big brands.
Solar water heaters
Installation:Installed outdoors, the larger the solar thermal collection area, the greater the thermal energy obtained.
Capacity Selection:18 tubes for 2-3 people, 20 tubes for 3-4 people, 24 tubes for 4-5 people, 30 tubes for 5-6 people, 36 tubes for 6-8 people.
3. Other statements about electric water heaters
In terms of trend, electric water heaters should tend to sell [ultra-thin double-bile electric water heaters] in the future, because the conventional cylinder electric water heater is very large, and the new electric water heater can release more space, as customers have higher and higher requirements for home decoration and bathroom layout, in the bathroom house type in the era of personalization, "thin" is the first priority.
Secondly, it is an electric water heater without changing magnesium rods, maybe you don't know about magnesium rods, but the simple understanding is that electric water heaters without magnesium rods are very durable, because magnesium rods are an important factor in determining the service life of electric water heaters.
From the technical analysis, the electric water heater mainly looks at three directions, namely: safety technology, durable technology and health technology.
The biggest insecurity of electric water heaters is electric shock, so the safety technology looks at the anti-electric wall, anti-dry boiling, and water power outage.
Durable technology is the magnesium rod I just said above, at present, the major hot water companies are basically promoting the issuance of non-replacement magnesium rod products, so the future will only gradually popularize, there is another important factor for durable technology is to "optimize the inner tank", electric water heaters have been used for a long time more or less must have scale, the common means is to find someone to clean or self-cleaning, now many companies have adopted special coating materials and processes, the effect is to make the inner tank anti-corrosion and anti-scale, and eventually become more durable.
Finally, the health technology is actually sterilization, that is, "antibacterial technology", and now some products have achieved "water quality monitoring visualization", you can experience it when you buy offline, at least I feel that it is a very great technology, because safe water is a major social proposition, and it is directly related to the establishment of customer trust by enterprises.
For the installation of electric water heaters, due to the safety requirements of electricity, the installation environment must have a ground wire, otherwise it cannot be installed!I shouldn't be reminding you about this.
Fourth, how to choose a gas water heater
Common models of gas water heaters
Balanced:Compact and does not take up space, so it is easy to move.
2. Strong row type:Oxygen is taken from the room, which is efficient and cost-effective.
3. Condensing type:The use of high-temperature flue gas is environmentally friendly and energy-saving, saving money and gas.
4. Zero cold water:With the return water system, it can be heated instantly, and the hot water does not have to wait.
Regarding the capacity selection, it is recommended to start from the perspective of the house type:
Key points for purchasing gas water heaters
The core looks at three points, namely: constant temperature, heat exchanger and zero cold water.
Constant temperature:There are three main types of thermostatic technology, if you want the water temperature to be accurate and controllable, the recommended selection order is the water volume server, water and gas double adjustment, gas proportional valve.
Heat exchanger:At present, there are many materials on the market, but there are three mainstreams, and from the perspective of life, phosphorus deoxidized copper is better;From the perspective of thermal efficiency, oxygen-free copper is more excellentZero cold water:At present, one of the most mainstream constant temperature technologies, equipped with a special cold water return pipe or one-way valve, to achieve zero cold water, hot water does not need to wait, it is open and hot.
5. Other statements about gas water heaters
From the trend point of view, the future purchase keywords of gas water heaters should be three, namely: smart wifi, zero cold water and condensing machine, the first two do not need to be repeated, and the last one can be understood as "high temperature flue gas secondary use, energy saving and gas saving".
6. Summary statement
Judging from the data, the performance of the electric water heater category in the mass market, the online market is concentrated within 2000 yuan, the offline market is very distributed, the difference is not obvious, and the more prominent segment is mainly between 3500-5000 yuan, and the growth is the most obvious.
The gas water heater is two extremes, the online market is extremely inclined to be less than 1500 yuan, and the offline market is extremely inclined to be more than 5000-6000 yuan.
As for the eternal question of whether the electric heater is better or the water heater is better, it actually depends on the personal choice, and at present, from the conclusion, the market suggests that if there are many people in the family and the amount of hot water is large, consider gas, and vice versa.
From the point of view of purchase, electric water heaters are generally cheaper than gas water heaters.
From the perspective of usage costs, one is to use electricity, and the other is natural gas, so gas will be cheaper.
From the point of view of service life and safety factor, in fact, they are almost the same, mainly refusing to use copycat inferior products and avoiding damage caused by long-term use and not repairing in time.
Finally, this category sharing is over here, if the content is useful to everyone, please pay more attention to me
References (based on**).
China State Grid] 2022 domestic market water heater and water purifier consumption trend report.
The popular science of the majority of netizens includes but is not limited to Zhihu, Station B, Douyin, Xiaohongshu, etc.