According to the manufacturer, Lukas has 1 more setting and consumes a little less power. However, the water tank is smaller and it is louder than Albert.
The biggest difference, however, is that Lukas can be controlled via WLAN compared to Albert.
Waste heat yes, but not that much.
When dehumidifying after showering, the blown air is at room temperature.
Light warm air is sprayed for drying laundry.