Before you buy: the big ones can't afford them;This is a contradiction faced by many low-budget users, with "big" home appliances selling at a high price; "Small" appliances are expensive to use. Walkers errands compared the selling price and use cost comprehensively, and found that 4 types of household appliances are more suitable for buying large ones - you only need to spend a little more money when you buy them, and you can save a lot of money when you use them.After buying: the small ones can't afford to use.
#01.Electric water heater丨Buy a large amount of hot water.
The capacity of the electric water heater should be as small as possible, one or two people choose 50L is enough, no more than six people choose 60L is enough, try not to buy 80L - family use, never use more than 100L.
Someone is going to ask: what should I do if my shower size is large, or I have a bathtub at home, and the hot water is not enough? The answer is to increase the amount of hot water in an electric water heater in three ways:
Increase the hot water output rate, up to 98%, try not to choose less than 80%.
Increase the heating power, up to 3500W, try not to choose less than 3000W.
Increase the capacity increase multiple, up to 16 times the capacity, try not to choose less than 10 times the capacity.
Why? Because the power consumption of an electric water heater is only related to capacity! The formula for calculating the power consumption is: Q = CMΔT, that is, the power consumption = the specific heat capacity and water volume increase temperature.
In this formula, the specific heat capacity and the elevated temperature are fixed, so the only factor that affects the power consumption is the amount of water, that is, the capacity of the electric water heater. The larger the capacity, the more water you have, the higher the power consumption.
#02.Gas stove丨Buy a large firepower.
Some fans have asked me before: The more powerful the gas stove, the more expensive it is?
The fire power of the gas stove is measured in "kilowatts". 5.A 2kw gas stove has a firepower ratio of 45kw large. The firepower of the gas stove has increased, and the most obvious advantage is that the stir-fry is more delicious:
It tastes better when stir-fried over a high heat, boils water faster, and cooks more flexibly. The firepower of a high-power gas stove can be reduced, so a high-power gas stove can have both a small firepower.
Back to the original question: does the more firepower the more it takes to get gas?
The answer is no, the vast majority of gas stoves have high thermal power by improving the combustion efficiency of natural gas, not by increasing the amount of gas produced. If you are not sure, you can take a look at the "thermal efficiency" parameter of the gas stove:
For two gas stoves with the same thermal efficiency, the more powerful the fire, the more gas saving. When purchasing, it is recommended to choose a gas stove with a thermal efficiency of more than 60%, and the combustion of natural gas will be more sufficient.
#03.Water purifier丨Buy a large amount of traffic.
The current water purifier has a flux of more than 1000g. The flux has become larger, and the most intuitive feeling is that the water flow is larger: a 1000g water purifier is filled with a pot of water (15l) takes 40 seconds; The 1500g water purifier only takes 25 seconds to receive a pot of water.
Saving time isn't important to you? Then you move on:
How does a water purifier increase throughput? The method is to increase the number of pages of the RO membrane filter - the RO membrane is rolled up in a circle like toilet paper. A few layers of volume, that is, a few pages. A 1000g RO membrane cartridge is generally six pages, and a 1500g RO membrane cartridge is generally ten pages. The increase in the number of pages increases the service life in addition to increased throughput.
A 1000g water purifier may need to change the filter element every two years, and a 1500g water purifier can be used for 10 years. During the 10-year period, the cost of consumables for 1500G is almost zero, and the RO membrane filter element has been replaced five times by 1000G, at least 300 yuan each time, and the cost of use is 1500 yuan.
Changing the filter element is not only expensive but also troublesome, compared with these, what is the extra three or five hundred yuan spent when buying the machine?
#04.Refrigerator丨Buy a large range of temperature control.
Don't forget to ask a word when buying a refrigerator: What is the minimum (maximum) temperature? The minimum temperature is low enough and the maximum temperature is high enough, which together means that the temperature range is "large".
Why buy a refrigerator with a large temperature range:
The wide range of temperature regulation means strong freezing capacity, fast refrigeration speed and better quality.
Rapid refrigeration can quickly shut down, shorten the working time of the refrigerator and save electricity.
Different foods have different requirements for freshness temperature, and a wide range of temperature adjustment can reduce food waste.
In addition, if you want to save electricity in the refrigerator, you can also pay attention to the following parameters: the smaller the capacity, the lower the power consumption; The "comprehensive electricity consumption" on the energy efficiency level represents the electricity consumption in a day; Functions such as frequency conversion and multi-air duct are also conducive to reducing power consumption.
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