Air energy, that is, the low-grade heat energy contained in the air, is also known as the air source. The law of conservation of energy tells us that energy does not arise out of thin air and does not disappear out of thin air. But according to the second law of thermodynamics, it is impossible for heat to be transferred from a cold object to a high temperature object without other changes. Although air energy is inexhaustible, in order to transfer the absorbed energy from the air to a high-temperature environment, it needs to consume electrical energy or heat energy, and this technology is called an air source heat pump.
