设备，用于在建筑物中的热水，与所述至少一个被加热的热水箱（2或12）的蓄热器（1）或（4）或热水管寄存器（14）中形成一个蓄热体中，电能与来自直流 太阳能电池元件（6）低直接电压或从电化学缓存送入至少一个电加热元件（3）和/或电加热（5）和AC功率的至少一个电加热元件（9），其特征在于，蓄热器（1），其 热水箱（2）或蓄热体（4）或热水管寄存器（14），用于所述热水储存箱（12）或所述热水箱的水加热上游装置（2）被直接提供与太阳能电池装置（6），低电压被直接加热，然后这个或 具有至少一个电加热的热水储存箱（12） 所述杆（9）在最终温度下被加热到交流电源。

Device with a, for water heating in buildings, with a heat accumulator (1) of at least one heated hot water storage tank (2 or 12) or a heat storage body (4) or a hot water pipe register (14) is formed of an electric power, with direct current from solar cell device (6) is fed low voltage directly or from an electrochemical caching at least one electrical heating element (3) and / or an electric heater (5) and with power at least one electrical heating element (9), wherein the heat accumulator (1) as hot water tank (2) or the heat storage body (4) or hot water tube register (14) is the hot water tank (12) of the device for heating water upstream or the hot water tank (2) is provided directly by the solar cell device (6) low voltage is directly heated and then this or the hot water tank (12) is heated with at least one electrical heating element (9) with power to the final temperature.