Food heating apparatus

A food heating apparatus, comprising:

• a main tank that has a top plate at a predetermined height and stores water at a temperature higher than 100° C.;
• a front reserve tank that communicates with the main tank, has a height for imparting a required hydraulic head pressure to the water in the main tank, and has an upper surface being open;
• a rear reserve tank that communicates with the main tank, has a height for imparting a required hydraulic head pressure to the water in the main tank, and has an upper surface being open;
• a front communication chamber that is arranged between the main tank and the front reserve tank and has a top plate at a position higher than the top plate of the main tank;
• a rear communication chamber that is arranged between the main tank and the rear reserve tank and has a top plate at a position higher than the top plate of the main tank;
• a front-side heat insulating partition wall that is arranged to separate the main tank and the front reserve tank and with an upper end protruding into the front communication chamber in a manner that the upper end is at a position higher than the top plate of the main tank;
• a rear-side heat insulating partition wall that is arranged to separate the main tank and the rear reserve tank and with an upper end protruding into the rear communication chamber in a manner that the upper end is at a position higher than the top plate of the main tank;
• a water exhaust tank that is arranged at a position higher than the front communication chamber and the rear communication chamber and has an upper surface at a position higher than water surfaces of the front reserve tank and the rear reserve tank;
• a first pressure exhaust pipe that has an inlet opening arranged in the top plate of the front communication chamber and an outlet opening arranged at a position within the water exhaust tank higher than the water surfaces of the front reserve tank and the rear reserve tank;
• and
• a second pressure exhaust pipe that has an inlet opening arranged in the top plate of the rear communication chamber and an outlet opening arranged at a position within the water exhaust tank higher than the water surfaces of the front reserve tank and the rear reserve tank.