SOLAR HEAT WATER HEATER

PROBLEM TO BE SOLVED: To provide a solar heat water heater capable of utilizing heat of a heat medium in a hot water tank with maximum efficiency regardless of pitch of a roof on which the device is installed, when a tap-water direct connection system is applied by disposing a heat exchanger in the hot water tank of the natural circulation type solar heat water heater. SOLUTION: The heat exchanger 4 is kept in hot water in the hot water tank 2 in a state of floated in a high-temperature region near the uppermost section of hot water by a float 44. A connection pipe 41 for supplying water to the heat exchanger 4 and a connection pipe 42 for supplying hot water after heating by heat exchanger are provided with a flexible section 43 to follow up the displacement of the heat exchanger 4. Thus, the heat exchanger can be automatically displaced to the position near the uppermost section of the hot water in the hot water tank even when an installation attitude of the hot water tank 2 is changed according to the pitch of the roof, regardless of a low pitch side or a steep pitch side with respect to a standard pitch, of the roof on which the solar heat water heater is installed. COPYRIGHT: (C)2011,JPO&INPIT