What is the working principle of the air-energy water heater which is so popular nowadays?

Air-energy water heater, also known as "air source heat pump water heater". "Air-energy water heater" absorbs low-temperature heat in the air, 

gasifies it through fluorine medium, then compresses it through a compressor to increase pressure and temperature, and then converts it into water heating through a heat exchanger. 

The compressed high-temperature heat energy is used to heat the water temperature. Air-energy water heaters are highly efficient and energy-saving.

 The same amount of hot water produced is 4-6 times that of ordinary electric water heaters. Its annual average thermal efficiency ratio is 4 times that of electric heating, and it has high energy efficiency.

This new product overcomes the shortcomings of solar water heaters that rely on sunlight for heating and are inconvenient to install. 

Since the air-energy water heater works through medium heat exchange, it does not require direct contact between the electric heating element and the water,

 avoiding the risk of leakage of electric water heaters, and also preventing the possible risk of gas water heaters and poisoning, and more effectively controlling the air pollution caused by the exhaust gas discharged by gas water heaters.

Air-energy water heaters do not require sunlight, so they can be placed at home or outdoors. 

After the water stored in the solar water heater is used up, it is difficult to produce hot water immediately. 

If it is heated electrically, it will take a long time. As long as the air-energy water heater is above zero degrees Celsius, it can operate under pressure 24 hours a day. 

In this way, even if a tank of water is used up, the air-energy water heater can produce another tank of hot water in about an hour or even less time. At the same time, 

it can also fundamentally eliminate safety hazards such as leakage of electric water heaters, dry burning, and harmful gases produced when using gas water heaters.

As the name suggests, air source heat pump water heaters transfer heat from the air to water through refrigerants. 

Traditional electric water heaters and gas water heaters obtain heat energy by consuming gas and electricity, 

while air source water heaters achieve the purpose of heating water by absorbing heat from the air. Under the same principle as refrigerators, refrigerators use the cold end, and it uses the hot end