METHOD FOR PREHEATING VENTILATION AIR IN A BUILDING

摘要: There is provided a method and apparatus for preheating ventilation air building. A solar collector along south-facing wall of the building, having bottom entry outside air, an upper exit to fan or other air-moving means. The withdraws from collector, after it has been heated by sun's energy also picking up some heat normally lost through building wall, then ejects into duct located preferably at ceiling level.