Steam generating apparatus

A steam generating apparatus comprising:

• a heater comprising a lower linear section and an upper linear section which are spaced apart from each other and have a predetermined length, and a curved section connecting the lower linear section and the upper linear section;
• a heating module comprising:
• a heater accommodation pipe which has a same shape as the heater and encloses an outside of the heater;
• a cover plate which is attached to both open ends of the heater accommodation pipe;
• a horizontal partition which is disposed between a lower linear section and an upper linear section of the heater accommodation pipe;
• and a heat dissipation pin which protrudes from at least part of the heater accommodation pipe;
• and
• a case which is configured to enclose the heating module and is secured to the cover plate,
• wherein a first penetrating hole and a second penetrating hole are formed on the cover plate, and the steam generating apparatus is configured to allow water to be injected into an inner space of the case through the first penetrating hole, and to discharge steam to an outside through the second penetrating hole.