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Sound generation, sound dispersion and sound proofing in heat pumps @planning:building_services:heating_and_dhw:heating:heat_pumps

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lable on this topic; a very good list is provided by the Association of German Engineers VDI 3731, She... hermore, considerable improvement can be achieved by coordinated decoupling of structure-borne sound¬

Experience with drain water heat recovery @planning:building_services:heating_and_dhw:experience_with_drain_water_heat_recovery

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al hot process water consumption can be decreased by 25 to 35 percent. * Not much space is needed,