Hotel use of solar energy to provide hot water, because hot water is twenty-four hours of supply, the scientific design of the solar system to make it reasonable, scientific and reliable. First, the solar system should be to ensure that the supply of hot water, second, the system should be equipped with electric heating to solve the problem of rain or sunlight to solve the problem. Third, the system should give priority to the use of solar energy to heat water, in the use of solar energy shortage of electricity heating, in order to achieve the purpose of energy saving.
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