A natural convection-type heating system implements, through a simple structure, indoor heating having little temperature deviation according to locations such as the floor and the ceiling, is easily constructed, facilitates maintenance and management, provides excellent heat efficiency and convenience of use. The natural convection-type heating system includes: an installation post installed on a bottom surface of a building in a certain interval close to an inner wall of the building and having a plurality of brackets vertically arranged thereon in a certain interval； a heating element continuously arranged along the inner wall of the building by being placed on each of the plurality of brackets； and a main control unit configured to apply electrical power to the heating element and control a heating operation of the heating element.
