| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a multi-energy resource heating system capable of avoiding a heating-impossible state by selecting a heating device to be used from heating devices to which energy resources are supplied currently. <P>SOLUTION: In the multi-energy resource heating system, in the plurality of heating devices for heating fluid to be heated such as water by using different energy resources (electric power, gas, kerosene or the like), it is detected whether or not the energy resource is currently supplied to the heating device in the descending order of preset priority levels of the heating devices (S3-S5). By using the heating device which is determined to be fed with the energy resource currently, the fluid to be heated is heated (S41). <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
