Domestic warm water system using waste water heat - has domestic and waste tanks with connecting heat transfer circulatory system

摘要

A domestic hot water supply heated by extraction of heat from waste or effluent waters, particularly a central type warm water supply system, has at least one warm water storage space (3) and effluent water storage space (5). The storage space (5) is connected through heat exchangers (8, 11) and at least one heat transfer circulatory system (7-11) of controlled type, which connects the warm water and waste water spaces and transmits heat from the waste water space to the warm water space. A circulatory pump (10) is connected to the heat transfer circulation system (7-11).