| 摘要 |
PURPOSE:To enable to efficiently raise the temperature of water in a water storage part by a structure wherein a light transmitting part for light absorption provided at a vertical wall part is arranged exposed to the sunlight. CONSTITUTION:A heat absorbing part 10 is provided nearly vertically and at the same time a tank part 11 is arranged at the upper part of the heat absorbing part 10. The light transmitting part for light absorption 12 comprising glass to transmit the solar heat is provided at the frontal side of the heat absorbing part 10. A heat absorbing pipe 13 bent in zigzags is installed within the light transmitting part for light absorption 12 and heats the water in the tank 11 by natural circulation in order to turn the water in the tank 11 into hot water, resulting in efficiently raising the temperature of the water. |
