| 摘要 |
<p>A conventional gas oven having exhaust holes in the high air pressure region of a heating chamber has a drawback that when a circulation fan is rotating, hot air is constantly discharged to cause a great heat loss. According to the present invention, exhaust holes are provided in or adjacent a region where the pressure becomes negative owing to the suction of a circulation fan when the gas combustion is off, with the result that there is no possibility of hot air being unnecessarily discharged in the gas combustion-off period and that in the gas combustion-on period the amount of discharge is automatically controlled according to the combustion rate. Thus, the invention is characterized by quick temperature rise and the saving of energy, consuming less fuel.</p> |
