The new approach (from Whirlpool) is called SlimTech, and it replaces the thick polyurethane foam and plastic that form the walls and doors in almost every refrigerator on the market. Instead, SlimTech is a vacuum insulation structure that contains a thin layer of compressed and proprietary powder sealed inside walls of steel.
Doors using SlimTech will be up to 60% thinner than the typical refrigerator door, and will increase the interior capacity by 25%. In another configuration, slightly thicker SlimTech installations could improve the internal temperature control so much that energy use would drop by 50%.
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