We run 2 engels ( 1 as freezer, other fridge ) both within those insulated travel bags.....great......NO, the other day i needed to pull the freezer one out of the vehicle, all good, once out i removed "the bag". the freezer was swimming in wet condensation on all sides, the water was trapped between the bag and the freezer, for how long i don't know, but surface rust was developing as a consequence........BEWARE
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A sure sign the fridges insulation is very poor & high humidity. Especialy if you use them as freezers the foam insulation can also become water loged. Pulled a Waeco apart that had been used as a freezer for a long period of time, & the foam insulation was full of water like a spounge.
Is the fridge using polyurethane foam? It has a shorter term insulation advantage over styrene. In the long run styrene maintains a better R value due to less moisture getting into the foam.
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50L custom fuel rack 6x20W 100/20mppt 4x26Ah gel 28L super insulated fridge TPMS 3 ARB compressors heatsink fan cooled 4L tank aftercooler Air/water OCD cleaning 4 stage car acoustic insulation.