FIELD: heating systems.
SUBSTANCE: invention refers to heating unit, heating method and use of heating unit for supply of hot main water. Heating unit including the first circuit (K1) of circulation, including the first medium, the second circuit (K2) of circulation, containing the second medium, and the first heat-generating device in the form of heat pump called the first heat pump located in the first circuit (K1) of circulation for heating the first medium in the first circuit (K1) of circulation. In addition, heating unit includes the following: the third circuit (K3) of circulation, which contains the third medium, heat exchanger called the first heat exchanger which is located in the third circuit (K3) of circulation and which is connected between condenser and expansion valve of the first heat pump for transferring heat from working medium of the first heat pump to the third medium in the third circuit (K3) of circulation, and the second heat generating device in the form of heat pump called the second heat pump located with possibility of heating the second medium in the second circuit (K2) of circulation by means of absorption of heat energy from the third medium in the third circuit (K3) of circulation. There also described is use of heating unit for supplying hot main water, as well as heating method of the second medium in the second circuit of circulation.
EFFECT: development of heating unit and method providing the possibility of effective use of heat pump connected to heating unit.
15 cl, 6 dwg
