We produce Korean traditional floor heating (Ondol) panels using a revolutionary construction system.A remarkable Ondol system, GOODLE has been selected as standard model in Ondol system by Samsung Cherville, and it dominates the Ondol market. It is an ideal alternative Ondol system in construction of wooden house, steel-frame structure, apartments and etc.Among similar products worldwide, only GOODLE meets thermal efficiency in building law. Convenience in construction and its light weight improve building structure and substitutes cement mortar in Ondol construction. It pioneers new frontier of construction environment.