| 摘要 |
<p>The invention relates to a system comprising: an electric water heater (1) provided with an inlet (11) for water at room temperature and an outlet (12) for sanitary hot water; and a variable number of photovoltaic plates (2) for the power supply of the water heater (1). The sanitary hot water outlet (12) has branches (31, 32) for connection to a heating boiler (3) and a shutoff valve (14) suitable for connecting the points of use (4) to the outlet (12) for the sanitary hot water from the water heater (1), either directly o via the heating boiler (3).</p> |
