The mini storage type electric water heater "Little Kitchen Treasure" is known as "the gospel of winter" and "kitchen artifact". Only the price of hundreds of yuan, you can achieve hot water ready-to-use, by more and more new home "decoration family" love.
However, there are many "small kitchen treasure" brands on the market at present, and the appearance and function seem to be the same, but the brand pricing and performance are obviously different.
Recently, the Shanghai Municipal Consumer Protection Commission purchased 20 "small kitchen treasures" through the online e-commerce platform to carry out comparative tests, with a capacity of 6-7 liters and a price ranging from 249 yuan to 786.6 yuan, and entrusted the Shanghai Institute of Quality Supervision and Inspection Technology to test the water adequacy, water temperature comfort and energy saving of the samples.
We found that most of the samples can meet the basic use of the family of three, and the water storage temperature also meets the daily handwashing needs, but there is a difference in the 24-hour electricity consumption between the samples, and the maximum difference in electricity costs is about 0.34 yuan / day. Let's take a look at the details together:
5 models performed well in terms of water volume
Compared with the instantaneous electric water heater, such as the electric hot water faucet, the main disadvantage of the small kitchen treasure is that the water consumption is limited, and it is not known how long it can be washed without hot water.
To this end, in terms of water volume, this comparative test tested the capacity of the small kitchen treasure, the output rate of hot water and the amount of hand washing water.
Capacity is to compare the measured capacity of the small kitchen treasure with the explicit capacity of the product nameplate. The greater the negative deviation, the more false the capacity of the product.
Hot water output rate refers to the ratio of the actual hot water output to the rated capacity under rated conditions. The higher the value, the more hot water is available.
The amount of handwashing is the maximum amount of water available at a comfortable water temperature when simulating consumers' actual use of the small kitchen treasure.
Detection findings:
All 20 samples met the standard requirement of "between ±10% of the capacity deviation". Only 1 sample has a positive deviation in capacity and the rest has a negative deviation.
The negative deviation of 1 sample with the nominal trademark "Yunmi" and the nominal specification model VEW0611 is large, its rated capacity is 6.0 liters, the measured capacity is only 5.4 liters, and the negative capacity deviation reaches the lower limit of the standard of "-10%"
The hot water output rate of the sample meets the requirements of the nominal energy efficiency level, and some samples are better than the nominal energy efficiency level, and most of them can reach the level of energy efficiency label level 1, showing the overall performance.
The amount of handwashing water is between 10.1 liters and 16.8 liters, which can meet the basic use of a family of three.
Among them, 5 samples had more than 15 liters of handwashing water, showing abundant water, and the nominal trademarks (specifications and models) were: Smith (EWH-6B2), Midea (F6.6-15A(S)), Linei (DSG6-M01L), Suber (E06-UK02), Faroli (ES-6.6U+).
A combination of three indicators
The best players in terms of water volume are as follows:
7 models performed well in terms of water temperature
For Xiao Kitchen Bao, the water temperature is undoubtedly the most intuitive feeling for consumers. Consumers not only need a stable water temperature, but also a variety of temperature options to meet different use scenarios.
This comparative test calculates the temperature between the storage water temperature and the temperature return by testing the temperature of the small kitchen treasure in the steady state, when the thermostat is turned on and off.
The higher the storage temperature, the higher the temperature of the hot water that can be discharged, and the more temperature options. The smaller the temperature difference, the more stable the water temperature.
The test results are displayed
The water storage temperature of 20 samples exceeded 60 °C, which can meet the needs of consumers to wash their hands, and 5 of them stored water temperature of more than 70 °C. There are 5 samples with a temperature difference of less than 5 °C, and the water temperature is relatively stable.
The test also found that most of the samples with small temperature returns were stored at around 65 °C.
Samples with high storage temperature, only 1 piece of temperature difference is small (nominal trademark: Bosch; nominal specification model: TR 3000T6.8-2MH).
Combine the two indicators
The best players in terms of water temperature are as follows: