| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hybrid system that can improve the accuracy of weather prediction and reduce the running cost thereof. <P>SOLUTION: The control device 5 of a hybrid water heater 1 stores a predetermined arithmetic expression for deciding a weather prediction result of the next day using an atmospheric pressure, a weather prediction result decided according to the arithmetic expression, and past data of at least one of an actual amount of heat collected by a solar heat collector 4 and an actual temperature of a heating medium heated by solar heat. Further, the control device renews a control constant which is contained in the arithmetic expression and of which value influences the weather prediction result according to the stored weather prediction result and past actual data, and decides the weather prediction result using the renewed arithmetic expression. <P>COPYRIGHT: (C)2013,JPO&INPIT |
