| 摘要 |
The present invention relates to a system with at least two household appliances, comprising at least one first household appliance generating waste heat in a cavity (10) and/or in an air duct, at least one second household appliance (12) using heated and/or preheated water, at least one heat exchanger (14, 20) for heating and/or pre-heating the water by the waste heat, and at least one reservoir (14) for storing water. According to a first embodiment of the invention the system comprises an air pipe (20) connected to the cavity (10) and/or to the air duct, respectively, wherein a portion of said air pipe (20) extends within the reservoir (14), so that the air pipe (20) and the reservoir (14) form a water-to-air heat exchanger. According to a second embodiment of the invention the system comprises a water pipe (24) connected to the reservoir (14), wherein a portion of said water pipe (24) encloses at least partially the cavity (10) and/or the air duct, so that the water pipe (24) on the one hand and the cavity (10) on the other hand form a water-to-air heat exchanger. |
