Original file (SVG file, nominally 512 × 356 pixels, file size: 16 KB)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:45, 12 October 2011 | 512 × 356 (16 KB) | Andy Dingley | Improve captions. Clarify the operating modes. Also "Cold" cannot be stored, only heat. | |
14:14, 3 April 2010 | 512 × 328 (10 KB) | Fred the Oyster | == Summary == Correct missing arrow and use gradient for aquifer layer | ||
11:39, 1 April 2010 | 512 × 328 (14 KB) | Fred the Oyster | {{Information |Description={{en|A hand-drawn picture of a heat pump system schematic combined with cold and heat storage, based on a schematic from Geotherm Energy systems.}} |Source=* 100px |Date=2010-04-01 11: |
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