OFFENER WARMWASSERBEREITER.

摘要

The water heating and storage tank (3) is equipped with a heating element (2), a cold water inlet pipe (7), and a hot water outlet pipe (12). The tank has a rigid outer floor (4), which supports an internal flexible diaphragm (18), with the space (23) between the diaphragm and the rigid floor (4) open to the atmos. through a hole (22). The space provides room for the expansion of the cold water during heating. When some hot water is run off through the outlet, cold water runs in through the inlet and acts on a piston (15) to lift the diaphragm to its initial position.