| 摘要 |
PURPOSE:To rapidly carry out space heating within the room and simultaneously melting of snow on the roof by providing a hot air supply unit for carrying out ventilation in a garret in addition to a hot air supply unit carrying out space heating of the room. CONSTITUTION:During the space heating operation, only a hot air supply unit 18 is operated, and an inlet 21 and an outlet 22 of the unit are connected to the room. During the ventilation operation, the outlet 12 of a first hot air supply unit 8 is opened and galleries 24 and 25 are opened to actuate a fan of the unit 8. During the ventilation/heating operation, the ventilation is carried out by the first hot air supply unit 8 and the space heating is carried out by a second hot air supply unit 18. During the snow melting operation, the outlet 12 of the first hot air supply unit 8 is connected to the garret 5, and the inlet 21 and the outlet 22 of the second hot air supply unit 18 are connected to the garret 5. |
