PROBLEM TO BE SOLVED: To provide a storage type solar heat collector, capable of resolving detects such that a conventional solar heat collector of a solar heat heating system for an agricultural house is expensive and uneconomic, and even if the solar heat collector can be inexpensively installed in the house, it is poor in efficiency since 1/3 of the cultivated area is used as the installation area.SOLUTION: The system includes a flat plate solar collector capable of collecting heat from both surfaces thereof, which is provided horizontally at a vertically middle position on the north side inside the agricultural house installed to lie east and west； and a reflector provided to guide solar heat beams to the collector from the upper side and from the lower side to collect heat. The heat is stored in a soil heat accumulation layer within a fortified soil layer. According to this, the heat collection amount of solar heat per heat collection area of the collector is increased, and the installation space of the collector is suppressed to 20% or less of the cultivated area.【課題】農業ハウスの太陽熱暖房システムの集熱器が高価で採算に合わない。集熱器をハウス内部に設置して安価に出来ても耕作面積の１／３を設置面積にとられ効率が悪い。両方の欠点を解決する汲み置き型集熱器を提供する。【解決手段】東西に設置した農業ハウス内部北側の上下中間の位置に、水平に裏表両面より集熱できる平板型集熱器を設け、上側からと、下側からと太陽熱光線を誘導する反射材を設けて集熱し、作土層内の土壌蓄熱層に蓄熱し、集熱器の集熱面積当たりの太陽熱集熱量を増加し、集熱器設置スペースを耕作地の２０％以下に押さえる。【選択図】図１
