Abstract: The article raises the problem of the need to study fireplaces as artistic and applied objects in modern interiors from the point of view of design design. A range of issues related to the design projects of original fireplace objects in public interiors is outlined. The subject of the study is the development of a typological approach to the study and classification of these interior objects. The object of the study is fireplaces in public interiors. Particular attention is paid in the article to the analysis of the stylistic unity of interiors and fireplaces, in connection with which the location of fireplaces in the interiors of executive class, sanatorium facilities, museum environment, libraries, hotels, restaurants and gaming establishments is shown. The main conclusions of the study are the following: the dominant functions of fireplaces in public interiors are revealed. These are primarily those that serve interior decoration as a means of aestheticization and as a means of creating solemnity and grandeur. The creation of fireplace halls in modern public interiors are designed for receptions, recreation or cultural leisure as they create a relaxed and comfortable area. The main stylistic preferences include styles that have signs of grandeur, solemnity, such as Baroque, classicism, Petrovsky style. But in any case, the stylistic characteristics are determined by the features of the interior and are interconnected with it.