| 摘要 |
<p>PROBLEM TO BE SOLVED: To further promote utilization of solar energy as domestically consumed thermal energy by employing clean energy, such as solar energy or the like to a heating device. SOLUTION: A device has such an arrangement that the temperature of a heating medium fluid which is circulated by a pump 6, is raised by solar energy which has been collected by a solar collector 1, and that the temperature of water in a hot water storage tank 2 is raised through a heat exchanger 3. Specifically, there is provided a control circuit 17 wherein the thermal energy in the tank 2 is supplied to a heating device 9 through a heat pump 8, an energy detector 7 for detecting the amount of solar energy is provided, and the operation speed of the pump 6 is accelerated for the acceleration of circulation speed of the heating medium fluid when the amount of solar energy detected by the detector 7 is not more than a set value.</p> |
