Currently, air-to-water heat pumps are in high demand, which, thanks to the high coefficient of heat conversion, reduce energy consumption and negative impact on the environment. The advantages of using a heat pump are safety, environmental friendliness, economy, and the fact that when using it, dependence on rising prices for natural energy sources is reduced. One of the main problems of the air-to-water heat pump is a decrease in productivity when the outside air temperature drops in winter. This paper analyzed the efficiency of air-to-water heat pump Mitsubishi Electric PUHZ-SHW230YKAR1 for providing a private house with heating, hot water supply and air conditioning. On the basis of the obtained results, graphs of the efficiency of the heat pump were constructed depending on the temperature of the environment and the coolant. The installation is able to generate heat at an external temperature of minus 28°C. The maximum heating temperature of the coolant is 60°C.

The article considers the use of the WLHP system, which is an alternative to already existing heating systems. It allows you to streamline engineering networks and implement energy-saving measures in the heat consumption sector. The advantages of the system are noted and the use of a heat pump in the system is recommended for the disposal of excess heat in the premises in order to reduce heat consumption. Measures related to energy-efficient technologies in Poland, Germany, and Sweden, including the use of heat pumps, were considered. The information regarding of the measurements СОР of energy-saving equipment implemented in Ukraine, in accordance with current standards, with the aim of improving the quality characteristics of the equipment present in the WLHP system, was introduced. The advantages of such a solution in comparison with traditional systems for ensuring the microclimate of premises are noted.