Heat pump solutions for domestic hot water in dwellings

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This report of the French Association for Heat Pumps (AFPAC) concerns heat pump solutions for the production of domestic hot water in dwellings. These solutions are now little known and little used. In a context where domestic hot water has become an issue for reducing the energy consumption of residential buildings, this document aims at presenting a synthesis of the systems available, as well as a number of examples where they are used. The solutions in which the domestic hot water is produced at the level of each dwelling (domestic hot water heat pump) are discussed, as well as centralised solutions and mixed solutions. These solutions are analysed in terms of their strengths and their ability to meet user comfort expectations: amount of hot water available, waiting time for hot water at the tapping point, acoustic comfort in the dwelling and for the neighbourhood.