PROBLEM TO BE SOLVED: To provide a greenhouse horticulture heating system capable of efficiently utilizing a refuse-derived fuel as a heat source for greenhouse horticulture, and reducing the heating cost.SOLUTION: The greenhouse horticulture heating system includes a horticulture greenhouse and a heater. The fuel is combusted in a combustion chamber of the heater, and hot air or hot water is generated from the generated heat. The generated hot air or hot water is fed into the horticulture greenhouse to heat the interior of the greenhouse. A blended fuel of RDF (Refuse Derived Fuel) and RPF (Refuse Paper & Plastic Fuel) is used as the fuel to be fed into the combustion chamber of the heater. The ratio of blending of RDF and RPF is changed according to a heating condition by a control means.【課題】施設園芸用の熱源としてごみ固形燃料を効率よく利用し、加温コストを削減できる施設園芸用加温システムを提供する。【解決手段】施設園芸用ハウスと加温機を備え、加温機の燃焼室で燃料を燃焼させて熱を発生させ、発生した熱により温風又は温水を生成し、生成した温風又は温水を施設園芸用ハウスに供給してハウス内を加温するようにした施設園芸用加温システムにおいて、加温機の燃焼室に供給する燃料としてＲＤＦとＲＰＦの混合燃料を用い、制御手段により、加温条件に応じてＲＤＦとＲＰＦの混合割合を変化させるようにする。【選択図】図１
