Grill having first and second electrothermal tubes

A grill, comprising:

• a first electrothermal tube arranged to have a first rectangular shape having four sides;
• a second electrothermal tube arranged to have a second rectangular shape having four sides, and being smaller than and disposed within the first rectangular shape, a first side of the first rectangular shape being parallel to and disposed at a first interval from a first side of the second rectangular shape to define a first regional interval between said first and second electrothermal tubes, a second side of the first rectangular shape being parallel to and disposed at a second interval from a second side of the second rectangular shape, a third side of the first rectangular shape being parallel to and disposed at a third interval from a third side of the second rectangular shape, the first interval being smaller than the second and third intervals, the first interval forming a regional high temperature area;
• and
• a temperature control unit, the first and second electrothermal tubes being connected to an external power supply by the temperature control unit, said temperature control unit comprising:
• a shell:
• an electronic temperature control rod for controlling a power on/off of said first electrothermal tube;
• and
• a control switch for controlling a power on/off of said second electrothermal tube, said control switch being set on a surface of said shell, the second electrothermal tube being selectively activatable both separate from and simultaneously with an activation of the first electrothermal tube, so that when both the second electrothermal tube and the first electrothermal tube are simultaneously activated, the regional high temperature area has an increased temperature, and when the second electrothermal tube is not activated and the first electrothermal tube is activated, the regional high temperature area has a decreased temperature.