Insulating a portable fridge
Submitted: Thursday, Jan 17, 2019 at 13:06
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Cobba123
Hi all.....
Owning a number of Engel fridges (running as fridges only), my circumstances have changed and have decided to run my older 39 litre as a dedicated freezer, which brought an idea to my head to possibly coming up with a way of further insulating so it better holds temperature meaning less compressor run time = less power to run.
Currently, My dedicated fridge is an 11 yo 40 litre model that has an Engel supplied transit bag, which sometimes when a hand is plased between the outer side of the fridge wall and transit cover, condensation is present for which i cant understand why, and definitely dont want happening when i modify the other model into "freezer only" .
The reason, this model was my grandfathers (1982 cream metal body/olive green lid) and is in fine condition for its age. Whatever form of insulation i put around it (thinking polystyrene) if condensation occurs, could result in rust on the body and lid. I then thought of a possible treatment applied to the surfaces to prevent rust but an unsure what that could be.
Finally, another reason why the extra insulation is because the unit will live on the back of my ute within a canopy where temperatures can and will be the highest of ambient.