Patent ID: 8904815

Claim:
A heating installation comprising a first closed circuit (K 1 ) containing a first medium circulating therethrough, a second closed circuit (K 2 ) containing a second medium circulating therethrough, a first heat generating arrangement ( 2 ) arranged in the first circuit (K 1 ) for heating the first circulating medium in the first circuit (K 1 ) and having only an expansion valve ( 2 f ), evaporator ( 2 c ), compressor ( 2 e ) and condenser ( 2 d ) situated directly one after the other in this order with no other intervening components and with the first medium circulating therethrough, a third closed circuit (K 3 ) containing a third medium circulating therethrough, a heat exchanger ( 40 ) arranged in the third circuit (K 3 ) and connected directly between the condenser ( 2 d ) and expansion valve ( 2 f ) of the first heat generating arrangement ( 2 ) with no other intervening components of the first heat generating arrangement ( 2 ) to directly transfer heat from the working, circulating medium of the first heat generating arrangement ( 2 ) to the third medium circulating in the third circuit (K 3 ), and a second heat generating arrangement ( 3 ) arranged for heating the second medium circulating in the second circuit (K 2 ) by directly absorbing heat energy from the third medium circulating in the third circuit (K 3 ), wherein the second heat generating arrangement ( 3 ) comprises an expansion valve ( 3 f ), evaporator ( 3 c ), compressor ( 3 e ) and condenser ( 3 d ) situated directly one after the other in this order with no other intervening components and has an output side connected to the second circuit (K 2 ) such that heat exchange between the second medium circulating through the second circuit (K 2 ) and condenser ( 3 d ) of the second heat generating arrangement ( 3 ) takes place, and input side connected to the third circuit (K 3 ) such that heat exchange between the third medium circulating in the third circuit (K 3 ) and evaporator ( 3 c ) of the second heat generating arrangement ( 3 ) takes place.