I've never bought a gas water heater.
This means that I am very familiar with electric water heaters: in the past ten years, I have used at least 10 electric water heaters due to moving, breakdowns, evaluations, etc. I used it a lot, and I used some experience-
Now if I am asked to buy an electric water heater, I will definitely not buy the following 7 types.
.01 Do not buy miscellaneous products
Some miscellaneous cards that I've never heard of, I'm sure to stay away.
On the one hand, it is because the safety requirements of electric water heaters are relatively high! The "safety" here not only has requirements for quality, but also for design, testing, etc. After all, leaking electricity from an electric water heater is not a trivial matter.
On the other hand, it is because electric water heaters also have high requirements for installation! The after-sales service of large brands will first test the electricity environment, and only provide installation services after passing the test. Miscellaneous brands don't even have their own after-sales service, let alone testing.
.02 do not buy without thermal insulation function
I used to use a very old-fashioned electric water heater once when I rented a house, and it didn't have a thermal insulation function▽
Plug in the electricity and start boiling water, and the water temperature will ring an alarm. The power must be turned off before bathing, and it will always be heated if the electricity is not interrupted. The hot water that is not used up will cool down quickly, so you have to re-boil the water the next time you take a shower.
long waiting time when boiling water; Hot water goes to waste; There is a risk of dry burning...... There are countless problems with this electric water heater, and no matter how low its price is, I will never buy it.
.03 do not buy small power
The power of the electric water heater does not affect the power consumption, only the boiling speed.
There are many factors that affect the speed of boiling water, and heating power is the most critical one. The higher the power, the faster the boiling speed must be - only two electric water heaters with the same power need to look at other factors to determine which boils water faster.
The boiling speed is fast, which can reduce the waiting time on the one hand; On the other hand, you can get more hot water by taking a bath while heating. Now when buying an electric water heater, it is best not to choose a power below 3000W.
.04 Do not buy hot water output rate less than 80%.
Nowadays, electric water heaters are filled with cold water and hot water is released at the same time.
The advantage is that the pressure of hot water will become as great as tap water, and the disadvantage is that the newly added cold water will lower the temperature of the water in the inner tank, resulting in waste. The specific reduction is related to the hot water output rate.
For an electric water heater with the same capacity, the higher the output rate, the greater the amount of hot water. The hot water output rate of first-class energy efficiency will not be less than 70%, and the highest can be 98%, it is recommended to choose a product with an output rate of not less than 80%.
.05 Do not buy the capacity increase multiple less than 6
Is "plug-in washing" safe? Let's take a look at what electric water heater businesses are promoting!
Almost every electric water heater is advertising its own "capacity increase multiple", which refers to how many times the amount of hot water that comes out of the final tank when plugged in and washed. The higher the multiple, the more hot water there is.
The capacity increase can be achieved by upgrading the shape of the heating rod, increasing the power, and upgrading the design of the inner tank. It can be increased by up to 12 times, and it is recommended to choose a capacity increase of not less than 6 times.
.06 do not buy the capacity more than 80L
Why should you buy a high-capacity electric water heater? It must be because there is not enough water.
However, the amount of hot water is not enough, and more abundant hot water can be obtained by increasing the volume multiple. For example, a 60L electric water heater can obtain 720L of hot water if the capacity increase is 12 times. It was enough to have 3 bathtubs at home!
The power consumption of an electric water heater is only related to the capacity - the larger the capacity, the more electricity it consumes. In addition, high-capacity electric water heaters can also lead to an increase in size, which can lead to problems such as ugliness, obstruction, and reduced suspension safety.
.07 Do not buy water softening function
Everyone likes soft water, there is no limescale and the skin is smoother after bathing.
As a result, many electric water heaters have launched the so-called "soft water" function, but the soft water effect cannot bear to look at directly. The built-in water softening function is often softened by ionization without consumables, and the scale cannot be completely eliminated.
If you are really concerned about scale, it is recommended to install a water softener (about 500 yuan) or water softener (about 2000 yuan) under the electric water heater, and the water softening effect will be better.
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