| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a ventilating system having high heat collecting efficiency and low cost while saving space by serving a heat collecting duct for both cold and hot season ventilation. <P>SOLUTION: The ventilating system has an air passage ranging from the heat collecting duct provided on an outdoor side to an indoor space. The heat collecting duct 32 has a ventilating mouth portion 36 at the front end, oriented upward. In the air passage 10, air in the heat collecting duct 32 inflates and flows from the inside to the outside of a building in a hot season and it flows from the outside to the inside in a cold season with a blowing fan 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
