| 摘要 |
PURPOSE:To enable to continuously discharge dirty air containing carbonic acid gas and fumes from a room with the lapse of combustion time stove, by supplying fresh air from outdoors to the ceiling space of a room in which a stove is installed to use. CONSTITUTION:A pipe fan 1 is installed in the wall which is open to the outdoor air, and a ceiling feed air opening 2 is provided in the center of a ceiling. The pipe fan 1 and the ceiling air feed opening 2 are connected by a pipe 5, and a pipe fan 9 is installed under the floor or in the wall. A floor air suction pipe 3 is provided in the wall on the floor of a room and the pipe fan 9 and the floor air suction pipe 3 are connected by the pipe 5. An exhaust pipe 10 is installed in the position 160cm above the floor in the wall which is open to the outdoor air. The cords of pipe fans 9 and 1 are plugged in the electric source. The pipe fan 9 is installed in the lower part and the pipe fan 1 is in the upper part of a mounting board, in the middle part of which an expandable panel 12 is provided. With such an arrangement, ventilating air can circulate slowly, and sanitary condition in a room can be improved.
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