Fridge Bags
Submitted: Thursday, May 15, 2008 at 18:27
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Do they help insulated the fridge or just stop it from getting knocked around.
Reply By: Member - Happy Gutz (QLD) - Thursday, May 15, 2008 at 18:34
Thursday, May 15, 2008 at 18:34
I've got a 40l Engel, lives in the sun in the back of my GQ. Last summer, I noticed a big difference with the bag on and off. As you said, also keep the fridge in better nick.
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303974
Reply By: howesy - Thursday, May 15, 2008 at 18:34
Thursday, May 15, 2008 at 18:34
Can help with the effects of ambient heat but everything has its limits.
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303975
Reply By: Affordable Batteries & Radiators - Thursday, May 15, 2008 at 19:38
Thursday, May 15, 2008 at 19:38
If it is a proper insulated bag yes.
Just like placing ice in a plastic bag v/s a soft esky.
The bags help against the sun and ambient temperature as
well as bumps and scratches.
Our Sidewinder-fridge has 50mm of PU foam but we still supply a bag free of charge because it does help.
Regards
Derek.
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Reply By: Member - Matt M (ACT) - Thursday, May 15, 2008 at 20:30
Thursday, May 15, 2008 at 20:30
Sorry to hijack the thread, but here's a question that has me puzzled. Why do they put the shiny side on the inside of the fridge bag? I would have thought having the reflective surface facing out and the dark one facing in would have been more efficient.
Matt.
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Follow Up By: Member - Bill F (VIC) - Thursday, May 15, 2008 at 22:03
Thursday, May 15, 2008 at 22:03
Hi matt
I am waiting on Derik's answer
BillF
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570113
Follow Up By: Hairs (NSW) - Monday, May 26, 2008 at 19:29
Monday, May 26, 2008 at 19:29
Hi Matt M,
The silver side on the inside helps stop the transferring of temp from the inside out.
An example is house insulation, either wall or roof. The silver side is always facing the inside of the building.
Although I have seen an exception to this rule once.
A gang of Carpenters that a project housing company hired put the insulation on the other way on about 6 homes. It looked like a squadron of spaceships had landed in the street. Not a pretty sight.
Didn't stop the Brickies doing their job. Don't know if it is cooler or hotter in those houses.
It did look weird.
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Follow Up By: Member - Matt M (ACT) - Monday, May 26, 2008 at 20:27
Monday, May 26, 2008 at 20:27
Hairs,
That's right, the silver side reflects heat back into the house. But you don't want that with your fridge, you want heat drawn away from the fridge which is better achieved with a matt black surface. Same reason that white cars are cooler than black ones, the white colour reflects heat away whereas black (or mica green in my case) draws the heat in to the car.
Still not sure why the fridge manufacturers do it this way around.
Matt.
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Reply By: lifeisgood - Thursday, May 15, 2008 at 21:17
Thursday, May 15, 2008 at 21:17
The bag obviouslly helps insulate my Waeco in the GQ back
seat.
I had some spare windscreen reflective shields.I cut pieces and slipped them between the plastic fridge wall and the bag for extra insulation,being careful not to cover motor air vents.
I then sat another ,reflective side up on top of the fridge to shade it from the direct sun coming in the side windows.
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304011
Reply By: Member - Phil G (SA) - Thursday, May 15, 2008 at 21:52
Thursday, May 15, 2008 at 21:52
I've glued the whole of the sides and bottom of the engel with 1cm thick high density foam. Just bought a pack of 4 floor mats (no holes) for $20 from Supacheap and used contact adhesive to attach. Might do the lid too, but
mine is never in the sun.
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Follow Up By: trains - Monday, May 19, 2008 at 19:10
Monday, May 19, 2008 at 19:10
So what difference did it make to its cycle time, and amp hr draw over 24hrs??
I covered my borrowed chescold 32lt with 1" foam, and it helped it considerably.
Trains
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Follow Up By: bob&loz - Monday, May 19, 2008 at 21:04
Monday, May 19, 2008 at 21:04
I have used some 20mm thick high density foam with the silver foil on one side that I got from an air conditioning installer and glued it on all surfaces. I than wrap the fridge in an old sleeping bag (NOT the vents) and top it off with a pillow on top. If you put you hand in between the pillow and sleeping bag it is very cold. So in my opinion you can never have to much insulation
Bob
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Reply By: MEMBER - Darian (SA) - Friday, May 16, 2008 at 10:08
Friday, May 16, 2008 at 10:08
While on this subject, to backup my Waeco's pyjamas, I've stuck some of that foil sided windscreen sunshield material on the rear and side windows of my cargo area - keeps the sun off the fridge - all helps.
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