| 摘要 |
<p>PROBLEM TO BE SOLVED: To permit the consuming public to check easily the merit of economical property or energy saving property of a cogeneration device. SOLUTION: Necessary operation data is collected and accumulated by an operation data collecting and accumulating means 10, then, the economical property merit information or the energy saving merit information of the cogeneration device are obtained by a merit information obtaining means 12 based on the collected and accumulated operation data and the basic data for economical property or a basic data for energy saving property, which are preset in a basic data setting means 11 through the merit information obtaining means 12, while the obtained merit information is indicated in a display unit 13 so that the consuming public, such as a housewife, an aged or the like for example, is permitted to check easily the merit of economical property or the energy saving property of the cogeneration device 1 by just looking at the display unit 13 actually.</p> |
