| 摘要 |
The device has a primary plain wall (1) provided with a sand-tempered soda lime glass sheet (7). The primary wall includes a Joule effect heating element (2) placed at level of a face (3) of the primary wall. A secondary plain wall (4) forming a metallic cover is arranged at a distance from the face of the primary wall so as to manage a space (5) in which hot air is raised along a vertical direction. Longitudinal protuberance (6) arranged on the face of the primary wall extends perpendicular to the raising direction of the hot air. |
