Kitchen unit provided with a lighting system

A kitchen unit (200), for example an extraction hood, has a task lighting system (100) for illuminating an operative area (210) below the kitchen unit, the task lighting system comprising: - at least a plurality of fixed lighting elements (110) configured to generate, on the operative area, corresponding fixed elementary light spots (270) and macro light spots (280) by the union of the elementary light spots; and - a control unit (115) configured to receive a spot position signal indicative of a desired position of a macro light spot and to selectively activate, based on the spot position signal, the lighting elements to generate a macro light spot with said desired position. 种用于建筑物的温度控制装置，该装置包括：发电机，其可操作来有助于用于建筑物处的消费电器的电力供应；热传递回路，其适于使传热流体循环以冷却发电机；加热系统，其包括热源和热交换器，热源用于为空间加热器和热水箱提供热能，空间加热器用于加热建筑物的至少个区域，热水箱布置成储存用于建筑物的热水供应，热交换器适于用从热传递回路获取的热能来补充来自热源的热能；用户界面，其适于使用户能够选择以下中的至少个：(a)用于建筑物的至少个区域的期望温度和第时间段，在第时间段期间保持该期望温度；和(b)用于从热水箱供应热水的第二时间段；并且该装置还包括：控制器，其配置成基于以下中的至少个来确定何时使发电机运转：(i)热水箱的热容量；和(ii)建筑物的至少个区域的第时间段、期望温度和当前温度。