The present invention relates to a heating system for a horticultural house, and more particularly, to a heating system for a horticultural house, which simplifies the structure and structure of a heating device installed in a greenhouse, The system is constructed so that the waste heat that is extinguished by the influence of the air can be quickly recovered and recycled as hot heat due to the reheating. Thus, the heating cost and the facility cost are drastically reduced and the heating system for the horticultural house will be.The heating system for the horticultural house using the waste heat includes a main body, a housing coupled to upper and lower portions of the main body, an upper plate and a lower plate through which the inside is penetrated, and a cover plate for opening and closing one side of the main body A waste heat inlet formed at the center of the protection net and formed of a suction fan for sucking in the thermal energy A waste heat generating unit installed inside the lower housing of the waste heat absorbing unit and formed of a heating body having a plurality of heating units fixed to the partition plates to heat the waste heat recovered A distributing plate coupled to a lower end of the housing and protruding upward in a conical shape so as to uniformly distribute the heated heat to the inside of the vinyl house a coupling shoe protruding upward from the rim of the distribution shoe A heated air distributor in which a through hole is radially penetrated An illumination unit having a plurality of LED lamps installed at a lower end of the housing to irradiate the crop with LED light And a control unit for controlling the heating element according to a power source and a set temperature of the heating element and the suction fan.본 발명은 시설원예하우스용 난방시스템에 관한 것으로, 더욱 상세하게는 비닐하우스내에 설치되는 난방장치의 구성 및 구조를 간단히 하면서 비닐하우스 실내의 대류현상에 따라 가열된 더운 공기가 상승하여 천장에서 머물다 찬공기에 영향으로 소멸되는 폐열을 신속하게 회수하여 재가열함에 따른 더운 열기로 재생 사용할 수 있도록 구성함으로써, 난방비용과 시설비용이 획기적으로 절감되며 유지관리가 편리한
