Device for heating up user water by heating medium including reverse flow heat exchanger - windings of pipe coil enclose circumferential wall of hot water tank forming inner jacket, and hot water flow passage opens out by hot end in hot water tank

摘要

The domestic water heater incorporates a heating coil. The windings (4) of the pipe coil (3) enclose the circumferential wall (2) of the hot water tank forming the inner jacket. The flow passage (7) for the user water opens out by its hot end in the hot water tank. The hot water pipe (11) is connected to the hot water tank.