SOLAR HEAT COLLECTOR, SOLAR HEAT COLLECTING MULTILAYER SHEET, AND SOLAR HEAT HEATER

摘要

Abstract A solar heat collector includes a heat collecting board, a solar radiation absorbing layer provided at one surface in a thickness direction of the heat collecting board, and a low emissivity and low solar reflectance layer provided at one surface in the thickness direction of the solar radiation absorbing layer. L ' J upper side left right side + side lower side rear side left right side side f ront side 22- B-