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- Supplying Passive Houses with sustainable energy
- ole earth, although varying climates lead to very different requirements in different regions. Various energy sources are also available in different amounts in various parts of the world. In additio
- Experience with drain water heat recovery @planning:building_services:heating_and_dhw:experience_with_drain_water_heat_recovery
- needed, and a variety of systems is available for different installation situations. * The systems are alr