HIGH FREQUENCY COOKING HEATER

PROBLEM TO BE SOLVED: To ensure uniform cooking heating of articles placed at the upper and lower stages of a heating chamber within the same time by disposing a fan in the vicinity of an waveguide and an outdoor air inlet made in the body and making an air inlet between the waveguide and the fan on the side wall of the heating chamber. SOLUTION: An upper exhaust opening is made on the upper rear side of a sidewall facing a sidewall provided with the upper power supply opening of a heating chamber 2 and a lower exhaust opening is made at a lower part of a shelf substantially in the center in the back and forth direction. A fan 21 is disposed substantially in the center of a space 20 in the vertical direction in the vicinity of an outdoor air inlet 16 and a waveguide 22 is disposed oppositely to the upper power supply opening 6 and a lower power supply opening at an upper part of the space 20. Furthermore, a lower air inlet 9b is made in the sidewalk of the heating chamber between the vane of the fan 21 and the waveguide 22 below the center of the fan 21.