| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilating device capable of re-utilizing heat. SOLUTION: The ventilating device is provided with an outdoor air suction port 32 and an outdoor exhausting port 31. The outdoor air suction port 31 is formed of an elbow tube 27 for sucking air, which is provided on the outdoor side of a wall 3, while the outdoor exhausting port 31 is formed of an elbow tube 26 for exhausting, which is provided on the outdoor side of the wall 3. The elbow tube 27 for sucking air is positioned in the elbow tube 26 for exhausting air to form a double tube. A heat exchanging means 30, consisting of heat absorption fins 33 and heat radiating fins 34, is provided between the elbow tube 26 for exhausting air and the elbow tube 27 for sucking air. Heat exchange is effected between exhausting indoor air and sucking outdoor air whereby energy saving can be contrived. |
