Ondol is a traditional underfloor heating system designated as a national intangible cultural heritage of Korea. The Cultural Heritage Administration (CHA) publishes a standard specification for the repair of cultural properties, including ondol. This standard specification is used as a guide for contractors who repair ondol in the field. However, the standard specification for ondol repair has some errors and is difficult to understand in the field. This paper proposes a revision of the standard specification for ondol repair. This study found that the standard specification for ondol repair has some problems in terms of the terminology and structure of ondol. These problems were sufficient to confuse ondol repairers in the field. Therefore, this study proposes to revise the standard specification to correct these errors and make it easier for ondol repairers in the field to understand. This study is expected to help recognize and preserve ondol as a cultural property and not just as a building.

The construction period of the ondol (Korean floor heating system) at Hoeamsa Temple Site is known as Joseon. The main reason is that a large number of remains in the Joseon era were excavated from the ondol floor with an all-around ondol method. This article partially accepts the theory of the creation of Ondol at Hoeamsa Temple Site during the Joseon Dynasty and suggests a new argument that some Ondol remains were built during the Goryeo Dynasty. The grounds for them are as follows. First, through the building sites consistent with the arrangement of the Cheonbosan Hoeamsa Sujogi (天寶山檜 巖寺修造記, Record of Repair and Construction of Hoeamsa at Cheonbosan Mountain), it is highly likely that the ondol remains as a basic floor was maintained during the reconstruction period in Goryeo. Second, the all-around ondol method of the Monastery Site has already been widely used since the Goryeo Dynasty. Third, some ondol remains consist of "Mingaejari" and "Dunbeonggaejari," which were the methods of the gaejari (which dug deeper and stayed in the smoke) in the pre-Joseon Dynasty. Based on the above evidence, this study argues that the building sites such as Dongbangjangji, Seobangjangji, Ipsilyoji, Sijaeyoji, Susewaryoji, Seogiyoji, Seoseungdangji, Jijangryoji, and Hyanghwaryoji were constructed during the late Goryeo Dynasty.

As a result of reviewing various documents and existing researches, since the late Goryeo period, the most active period in the Ondol(溫突, Korean floor heating system) facilities is the 17th century. The phenomenological reason was recovering the buildings destroyed by the Japanese Invasion of Korea in 1592(壬辰倭亂]) & the Manchu War of 1636(丙子胡亂), but the underlying cause was an abnormal climate in which a pair of summer and winter cold continued. In the 17th century, as the Ondol facilities grew rapidly without distinction between regions and classes, the supply and demand of fuel caused economic and natural environmental problems. And a negative and positive view on Ondol was suggested. Since the middle of the 18th century, when the demand and supply of Ondol reached its peak, which could no longer increase, a new awareness of Ondol began to grow. The room was called the Panbang(板房)and the Ondol, depending on the material that made up the floor. It was considered natural to have the Ondol from this time on. The Incan(□火間) and Jo(竈) that were made to burn were started to be recorded as a kitchen, regardless of size and function. Changes in social awareness of Ondol have led to concerns about heating efficiency. A variety of architectural explorations were conducted. Such a search was later realized in concrete architectural form. There is a double Ondoll structure, and the column spacing is reduced compared to the previous one. The heat buffer space is formed around the Ondol room, and the double window can control the light and the air going in and out.

This study would investigate the significance of Ondo I during the Joseon dynasty period centering around the structure and significance of Ondo!, an understanding of the Annals of the Joseon Dynasty and examples related to Ondo! that appeared in the Annals. Ondo!, which has been with the Korean people for the past 3,000 years, which has a lot of meaning from a social welfare aspect as well as architectural significance. Tlu·ough The Annals of the Joseon Dynasty, it was noted that during the Joseon dynasty period, Ondo! was used for students' health, for the practice of filial behavior and for Jost children.

The purpose of this study is to provide a standardization for the modem use of traditional phrases. Until now, the theory has been developed that the room warms up when the room is warmed through the fireplace. In this study, we propose the definite shape and size of the mechanism that is dedicated to heating and cooking in an ondol system. When using a few kilograms of fuel according to the size of the room, the temperature is raised. The time to stay heated and the time to cool down are recognized and the structure of a whale-lariat chimney was proposed to effectively demonstrate the functions of the spheres

President Park geun hye recently mentioned "we need to find masters of our traditional culture such as music, dance, art & design and technician for ONDOL as the Korean heating system to develop for our future growth". The government moreover announced the plan proceeds global business by ONDOL system and natural constructing techniques but there aren't specified procedures brought yet. International society of Hanok as a group which is deeply involved in promoting Korean traditional heating system "Ondo!", should now be the most influential group in globalization.

In Hanoks which are Korean traditional houses, gudeuls (ondols) are more important than other elements. Recently, demand for Hanoks has been rapidly increasing thanks to the effects of Korean waves and rediscovery of traditions. This paper traced the process of development of gudeul construction technology to examine the definitions of terns and changes in the types of gudeuls and discussed the prospect of future gudeul construction technology.

In Hanoks which are Korean traditional houses, gudeuls (ondols) are more important than other elements. Recently, demand for Hanoks has been rapidly increasing thanks to the effects of Korean waves and rediscovery of traditions. This paper traced the process of development of gudeul construction technology to examine the definitions of terns and changes in the types of gudeuls and discussed the prospect of future gudeul construction technology.

There are many different types of heating methods in the world. Most of these heating methods are through radiation and convection. These heating types emphasize insulation because it is important to maintain the indoor air temperature. In contrast, the ondol, emphasizes thermal storage in the floor because it heats conduction. In other words it heats through direct contact. This unique heating method has created a unique interior environment. Activities have to occur close to the floor so that people may come in direct contact with the heat, thereby influencing the cultural development of the Korean people. The ondol has also created an interior environment where it is wanner near the floor than the ceiling in contrast to other heating systems where the area close to the ceiling is warmer. This environment is inline with the optimal healthy conditions the Koreans prefer, the warm feet cool head environment.

1. 환경과 생태위기 2. 온돌에 숨어있는 환경코드 3. 온돌과 관련된 불의 정신세계 4. 온돌의 원점 5. 스스로를깨끗하게 하는온돌민속 참고문헌