| 摘要 |
The device is characterized by the unique structure of the heating elements (8), which comprises a self-regulating heating cord coiled around the outside of the lower portion of the wall (117) of the tank (4), and composed of two electrical conductors embedded next to each other in a resistive material whose resistivity increases in proportion to the temperature. The heating tank (4) delivers luke warm water at the outlet (1) and heats water from the inlet pipe (2) which has cooled after passing through a central hot water generator. |
