I don't quite belive the numbers quoted on thier data sheet because they have used a different test proceedure to the usual one, by thier own admission. If they were shining a radiant heat source at it, yes it probably has a very good insulation value. however, in a fridge, radiation doesn't come into it, unless you have a shiny surface on the outside of the box, where the heat can be reflected back into 'free', ventialted space. but radiation can't pass through opaque stuff, i.e. the 'fluffy' insulating layers, and so it is pointless having internal foil layers (or am I missing something?). Even if that did work, it's pointless havng multiple foils because they will reflect the heatback in just as much as they reflect it out once the heat is between the foils...
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nothing-absolute nothing-half so much worth doing as simply messing about in boats.
"I'm as honest as the day is long // the longer the daylight the less I do wrong"
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