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Broken Single Glass Heat Pipe Solar Thermal Collector

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greenenergy-daegu-2210.jpg EXCO ROOF Green Energy Exhibition DaegueThumbnailsDrummer at Green Energy Exhibition DaegueEXCO ROOF Green Energy Exhibition DaegueThumbnailsDrummer at Green Energy Exhibition DaegueEXCO ROOF Green Energy Exhibition DaegueThumbnailsDrummer at Green Energy Exhibition DaegueEXCO ROOF Green Energy Exhibition DaegueThumbnailsDrummer at Green Energy Exhibition Daegue

On Exco Roof (Green Energy Exhibition Daegue). Completely 204qm broken Single-Glass-Tubes with metall-glass junction. Wasted 220 Mio KWR. Tube manufaturer is not known. Single glass tubes are broken by design and can not keep vacuum over a longer periode.