PURPOSE: To provide the separation and independence between a fumigating box and a burning box, the structure that a pilot flame is not extinguished easily caused by the opening-closing of a door by a method wherein a guide plate having a burning air introducing hole is provided, in freely attachable and detachable manner, at the rear part of a burning chamber.
CONSTITUTION: A burning chamber 15 is located at the lower part of a burning box 18, burning air introducing holes 21, 21' are provided at a front surface 19 and a bottom surface 20 of the burning chamber 15, and burning air introducing holes 23, 24 are provided on a rear part guide plate 22. The guide plate 22 is provided in freely attachable and detachable manner. A wind pressure generated at the closing of a front door 10 is introduced into a suction chamber 16 through a hot air suction hole 11 at the central part of a hot air partition plate 14, into a fan containing chamber 17 through a blow-off passage 30 from right and left sides hot air blow-off holes 12, then into the suction chamber 16 from a suction hole 29, finally pressured into the inside of the burning chamber 15 as the wind pressure through a burning gas passage 25 from the suction chamber 16. At this time, the wind pressure is discharged to the outside because of the burning air introducing hole 23 is provided on the guide plate 22.
INOUE SHIYOUJIROU
SETOGUCHI HIROYUKI
