Thermal pumps.
Everyone loves to live with comfort. To meet their needs, a person widely uses natural resources, which, unfortunately, are not eternal and, as a result of uncontrolled consumption, can quickly be exhausted. That is why, the cost of the main minerals, most massively used today (coal, wood, oil, gas), is growing every year. In this connection, a person was acutely faced with the question of replacing natural resources with non -traditional energy sources, such as water, soil, air, which, moreover, are environmentally friendly raw materials that do not pollute the environment.