|Originally Posted By dablues:
An insulating blanket or something like that helps; we kept the original cardboard box the freezer came in and use that (with a cutout for an air intake) to trap a layer of air next to the freezer.
No. Do Not Do This.
On a chest freezer the outside walls radiate the heat away from the interior. Covering a chest freezer with insulation is like running a marathon wearing a parka.
Don't do it !
If it is an upright, and the coils are exposed on the back, then you could effectively wrap the rest of it in foam.
NOT on a chest freezer !!!!
here, look at this.... http://www.repairclinic.com/Freezer-Chest-Appliance-Diagram
All of the walls
are heat exchanger surface.
The only time you would ever wrap a chest freezer is during a power outage, and you have no power.
The only two locations that could be insulated in normal use are the top and the floor, but not the walls. Glue some foam on the lid, set the unit on top a couple inches of foam to insulate the floor, but unless you are forcing air around the case with a computer fan, boxing it in defeats the purpose.
Oops, thanks for letting me know. I thought it was like a house fridge where there was heat exchanger coils on the bottom w/ a fan that blew out the hot air & the sides & top were just inactive insulation.