The present invention provides a greenhouse that can be used in an environment-friendly cold region that can warm up soil and indoors and can spray indoors while suppressing initial costs and running costs. An indoor room is formed by an enclosure provided with a ventilation opening, and a thermometer and a moisture meter are provided in a soil layer in the room, provided below the soil layer in the room and in the vicinity of the enclosure. Based on the temperature measured by the thermometer, using electricity generated by small hydroelectric power generation using running water generated from an outdoor high water source as a power source, The heating element embedded in the crushed crushed stone layer is operated, the soil layer and the indoor air and the drainage channel are warmed, the ventilation port is opened and closed, the indoor temperature is adjusted, and the high temperature Flowing water generated from a water source is introduced into a primary tank installed indoors in a predetermined facility, temporarily stored, and the valve of the tank is opened and closed based on the moisture content measured by the moisture meter. ,in front The running water pressure, and water conveyance from said primary tank water guide member extending upper space of the chamber, spraying water as a high-pressure water from a small hole provided in the water guide member greenhouse. [Selection] Figure 2【課題】イニシャルコスト及びランニングコストを抑えつつ、土壌及び室内等を暖め、かつ、室内への散水を行うことができる環境に優しい寒冷地にも対応できる温室を提供すること。【解決手段】換気口部を備える囲いにより室内が形成され、前記室内の土壌層に温度計および水分計を備える温室であって、前記室内の前記土壌層の下方および前記囲いの近傍に設けられた室外の排水路の下方に切込砕石層を設け、前記室外の高所水源から発生させた流水を利用した小水力発電による電気を電源として、前記温度計により測定された温度に基づいて、前記切込砕石層に埋設された加熱体を動作させ、前記土壌層および前記室内の空気並びに前記排水路を暖めるとともに、前記換気口部を開閉動作させ、前記室内の温度を調整し、前記高所水源から発生させた流水を所定の施設の屋内に設置された一次タンクに導水して一時的に貯水し、前記水分計により測定された含水率に基づいて、前記タンクのバルブを開閉動作させ、前記流水の水圧により、前記一次タンクから前記室内の上方空間に延びる導水体に導水し、前記導水体に設けられた小孔から高圧水として散水する温室。【選択図】図２
