Heating apparatus and cooking apparatus including same

A heating apparatus, comprising:

• a housing having an accommodation space formed therein and an opening at an upper portion thereof;
• a container configured to be inserted into the accommodation space and having an opening at an upper portion thereof and a space formed therein to accommodate a fluid;
• a heater configured to heat the fluid accommodated inside of the container;
• and
• a cover configured to cover the opening in the housing, wherein the cover includes a cover main body having a length extending in a longitudinal direction and a width extending in a horizontal direction, wherein the cover main body is configured to be rotatable between an open position in which position the opening of the housing is open and a closed position in which position the opening of the housing is closed, wherein the cover main body covers the opening of the container and seals the container in the closed position, wherein the cover main body includes:
• a cover frame configured to form a shell of the cover;
• an outer cover coupled to the cover frame;
• and
• an inner cover coupled to the cover frame so as to be disposed below the outer cover in the closed position, wherein the outer cover is formed in a shape of a flat plate, wherein a sealing space is formed between the outer cover and the inner cover, wherein the inner cover includes:
• a planar portion which forms a plane parallel to the outer cover and is disposed to be spaced a predetermined distance apart from the outer cover so that the sealing space is formed between the outer cover and the planar portion;
• a sidewall that extends toward the outer cover from an edge of the planar portion and surrounds the sealing space;
• and
• an extension that forms a plane that extends from the sidewall in an outward direction parallel to the outer cover and contacts the outer cover, and wherein the cover frame includes:
• a frame main body configured to form a shell of the cover frame;
• a first seating surface which is concavely formed in the frame main body and forms a concave plane configured to receive the outer cover seated thereon;
• a through-hole that passes through the first seating surface and form a path through which the planar portion and the sidewall pass;
• and
• a second seating surface disposed between the first seating surface and the through-hole, concavely formed in the frame main body so that a step is formed between the first seating surface and the second seating surface, and forming a concave plane configured to receive the extension seated thereon.