Importance

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Abstract

A heating apparatus comprises a housing (10) with an apparatus volume (15) enclosed thereby. The apparatus comprises a liquid supply (13) for a liquid flow and a liquid discharge (14) for the liquid flow at an increased liquid temperature. The apparatus further comprises a gas inlet (11) for a gas flow. and a gas outlet (12). A heat exchanger (W2) is provided between the gas flow and the liquid flow. A compressor (30) driven by a drive (40) brings the gas flow to an increased pressure and temperature upstream of the heat exchanger (W2). Provided upstream of the gas outlet is a turbine (50) which is driven by the gas flow and which produces an output capacity which is supplied to the drive of the compressor (30). The compressor (30) comprises a mechanical drive (40) which supplements the power supplied by the turbine (50) up to the power consumed by the compressor (30).

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First Claim