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  • Tue, Mar 29, 2016 - 11:09am



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Technically, the only reason why a chest freezer requires ANY energy input at all is to make up for the losses across  the insulation boundary ( excluding the  addition of warmer contents, of course)

An effective, although enormously costly solution would be to construct the freezer cheat as a rather large Dewar flask, with double skinned walls between which there exists a hard vacuum.


The same thing applies to geysers …. The only reason they consume any standby power at all is because of insulation losses, which would be amenable to a similar solution.