A laundry machine washer-dryer combination includes a cabinet, a drum, a heater, an air duct, a container, and a fluid loop. The cabinet defines an internal chamber. The drum is disposed in the internal chamber and is configured to receive clothing articles. The heater is disposed in the internal chamber and is configured to heat air flowing to the drum during a drying cycle. The air duct is disposed in the internal chamber and is configured direct air from the drum to the heater during the drying cycle. The container is disposed in the internal chamber and has an energy storage material disposed therein. The fluid loop is configured to transfer heat from the air flowing through the air duct to the energy storage material during the drying cycle.

The present invention relates to a home appliance, in particular a dishwasher, a washing machine or the like, and a method for controlling said home appliance. The home appliance comprises a water supply unit including a water supply port configured to be connected to a water supply for supplying water, like fresh water, to the home appliance, a water reservoir for storing water to be supplied to the home appliance by the water supply unit, a treatment space for treating objects in the home appliance, like dishes or laundry, a heat exchanger for exchanging heat between the water supplied to the reservoir and the water discharged from the treatment space by at least one pump unit, a control unit for controlling the operation of the home appliance and a bypass device for bypassing water supplied by the water supply unit past the reservoir to the treatment space.

The present invention relates to a home appliance, in particular a dishwasher, a washing machine or the like, and a method for controlling said home appliance. The home appliance comprises a water supply unit including a water supply port configured to be connected to a water supply for supplying water, like fresh water, to the home appliance, a water reservoir for storing water to be supplied to the home appliance by the water supply unit, a treatment space for treating objects in the home appliance, like dishes or laundry, a heat exchanger for exchanging heat between the water supplied to the reservoir and the water discharged from the treatment space by at least one pump unit, a control unit for controlling the operation of the home appliance and a bypass device for bypassing water supplied by the water supply unit past the reservoir to the treatment space.

The present invention relates to a heat exchanger and a system for recovery of thermal energy from waste water. The heat exchanger comprises: an outer tube, an inner tube for waste water, and a control element, wherein said inner tube is arranged in said outer tube in such a way that a space is formed between said inner tube and said outer tube and wherein said control element is arranged in said space and is arranged to guide a medium in a helical movement around the inner tube so that thermal energy from said waste water is transferred to said medium.