Use of water heater
After taking a shower at night, if there is still half of the hot water at nearly 70°C in the water heater tank, in order to prevent excessive heat loss (the less water, the faster the heat loss), the amount of water should be determined according to the water temperature forecast. Tomorrow is sunny, full of water; rainy day, 2/3 of the water.
Simple testing method for the quality of household appliances
In the early stage of development of the home appliance industry, most professionals advocated quality first. With the advent of the new era, many developed countries have changed their concepts, paid more attention to energy conservation and environmental protection, and advocated the sustainable development of the ecological environment.
How to clean the solar water heater
When the water in the water tank is completely drained, hold each vacuum tube back and forth with both hands, loosen the sealing ring on the vacuum tube and the water tank, and push it into the water tank. When the bottom of the vacuum tube can be removed from the fixed base, pull the vacuum tube out of the water tank; take the water out of the vacuum tube and pour it out, so that the scale is poured out.
How to use solar water heaters
1. When taking a bath, if the water in the solar water heater has been used up and the person has not rinsed it, then you can put cold water for a few minutes, and use the principle of cold water sinking and hot water floating to push out the hot water in the vacuum tube. You can then take a shower.
Solar heating, the advantages of solar heating
my country's north, northeast and northwest regions all need heating in winter, and southern regions such as Jiangsu and Hubei also have greater heating needs. According to statistics, about 100 million households in rural towns and cities in the three major regions do not have a central heating network. Rural houses are generally brick-concrete structures with no insulation on the outer walls. In winter, the indoor temperature should be kept above 15°, and the average household consumes 4.36 tons of standard coal in each heating season. If solar energy is used, 100 million households will save 436 million tons of coal and reduce carbon dioxide emissions by 1.13 billion tons.
Summary about electrical inspection
With the accelerating process of economic globalization, economic globalization has achieved unprecedented development. my country has continuously penetrated into the scope of the international market. After my country joined the WTO, my country's import and export trade volume has continued to increase. Energy efficiency puts forward higher requirements,
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