I thought that the cost of use would be very high, but I actually used it but found that it was not as "terrible" as I imagined.Some appliances are "unaffordable", such as air purifiers. But there are some home appliances that are just the opposite - I thought I would not be able to afford it, but after using it, I found that it was not expensive. Today we will talk about 5 kinds of "affordable" home appliances.
#01.Electric water heater
The power of the electric water heater is high, and many people regard it as an electric tiger. But in fact, it consumes very limited power:
The 60L capacity electric water heater can heat water from 20 to 60 and only consume 2 electricity8 degrees(Calculation formula: Q=cmδt, that is, the specific heat capacity is 4.)2*1000, weight: 60, elevated temperature: 40).
Note! Power consumption has nothing to do with power, only with capacity and temperature difference(the difference between the set temperature and the initial water temperature).Relate. The larger the capacity and the greater the temperature difference, the higher the power consumption.
As for the power, it is only related to the heating speed, the more powerGreatThe faster the heatingFast。Therefore, when buying an electric water heater, you should try to choose one with small capacity and large power; When using, try to lower the set temperature.
#02.Refrigerator
The refrigerator is so big, and it has 24 hours a day, will it be very power-consuming? In order to solve the user's misunderstanding, the refrigerator even directly marked the power consumption on the refrigerator door
Combined electricity consumption in kWh for 24 hours. The implication is obvious: the amount of electricity required for a refrigerator to be powered on for 24 hours. If you look at a few refrigerators, you will find that this value often does not exceed 1 kilowatt-hour of electricity per day.
But there are some limitations to this power consumption:
The more things you put in, the higher the power consumption;#03.Dryer washer and dryerToo little space for heat dissipation will lead to increased power consumption;
If the ambient temperature is too high, the power consumption will also increase.
Anything that can be heated, we will think that it consumes more electricity. But the drying function on the dryer or washer-dryer seems to be an exception.
The drying power of the washer-dryer is generally less than 200W, and it works continuously for 1 hour and consumes 02 degrees. One hour is enough to dry clothes of most fabrics.
The power of the independent dryer is slightly higher, generally around 1000w. However, the independent dryer is a heat pump type, and the principle is the same as that of refrigerators and air conditioners, and the motor is not running all the time during the working process. Therefore, after 1 hour of activation, the actual power consumption is still at 0Around 2 degrees.
#04.Steamer Steamer
I also bought a steamer and steamer at home, and when I first bought it, I was still a little drummed: on the one hand, I was worried that the power consumption would be too high, and on the other hand, I was afraid that it would be too wasteful of water.
Afterwards, I found out that I was overly worried:
In terms of power consumption, the power of the steamer and steamer is about 300W. The amount of electricity consumed to cook a meal is negligible.
In terms of water consumption, both products are unexpectedly water-saving. 150ml of water can make the electric steamer work for 3 hours - 1 10 times the water consumption of a traditional steamer.
The reason why the water consumption is so low is because the electric steamer steamer has good sealing, and the water vapor is not easy to overflow. Moreover, it directly turns water into water vapor, which is more efficient in vaporization.
#05.Smart door lock (battery).
The first smart door lock I ever bought, I felt that the cost was too high! A lock requires 10 No. 5 batteries, and 2 yuan a piece costs 20 yuan, and it needs to be replaced almost every month.
Later, I changed the lock again, only to find out that my lock was not bought correctly:
Some smart door locks can be connected to the heaven and earth hook on the anti-theft door (that is, the hook on the side and top of the door), and it takes a lot of strength to pull the heaven and earth hook. Door locks can only rely on battery power, which will naturally consume a lot of electricity.
The vast majority of smart door locks do not come with a heaven and earth hook, and a set of batteries can last for about a year - if they have a rechargeable battery, the cost of use is lower.
The number of batteries is also relatively small without a lock with a heaven and earth hook.
And the worker who installed the lock told me that the security of the security door depends on the lock, and it has nothing to do with whether it has a heaven and earth hook or not. The heaven and earth hook only has a little protective effect on violent breaking, but if people break the door violently, I am afraid they will not care about the heaven and earth hook.