Ice-packs in fridge??

Submitted: Wednesday, Apr 09, 2008 at 16:44
ThreadID: 56476 Views:2858 Replies:7 FollowUps:14
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Gday,

I've been given a fridge by a mate to use while we are on the road. It is a Waeco ca-35 litre, 3 way set-up. Apparently it is not very efficient on dc power. It will drain flat in 24hours??. I have a 100 series and i dont want to put 3rd battery in. $$. Can i put ice-packs in fridge or bagged ice to prevent it working so hard. I have no idea about fridges. this is my first. Any clues as to how to run this fridge while in car would be great.

cheers David
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Reply By: colj - Wednesday, Apr 09, 2008 at 17:02

Wednesday, Apr 09, 2008 at 17:02
TECHNI ICE PACKS SOUNDS LIKE THE GO, SHOULD SAVE THE FRIDGE FROM RUNNING HARD ALSO MAKE SURE EVERY THING IS AS COLD AS YOU CAN GET BEFORE PUTTING IN.
AnswerID: 297606

Follow Up By: Mark & Jo, S/side, Bris - Thursday, Apr 10, 2008 at 10:42

Thursday, Apr 10, 2008 at 10:42
I found the techni ice to be useless, they found their way to the wheelie bin.
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Follow Up By: Leroy - Thursday, Apr 10, 2008 at 13:36

Thursday, Apr 10, 2008 at 13:36
I was a bit sceptical intially but they have grown on me a little. I stuff them in cooler bags etc and found them to work well. They will never be a replacement for ice though in their esky's. Thier esky's are brilliant. Even the bagged ice lasts a couple of days where it would of melted in a cheapy in half a day.

Leroy
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Follow Up By: Mark & Jo, S/side, Bris - Friday, Apr 11, 2008 at 00:34

Friday, Apr 11, 2008 at 00:34
I have used techni ice in cooler bags, (ice taken from deep freezer) and it hasn't even lasted 4 hours before it is no longer ice. In an esky basically was the same amount of time.
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Reply By: pepper2 - Wednesday, Apr 09, 2008 at 17:08

Wednesday, Apr 09, 2008 at 17:08
If its 3 way it will flatten the battery in less than 24hr maybe 2/4 hrs depending on your battery cant you set it up on gas when stopped that is what it is designed for....with the engine running the alternater will handle the power to the fridge easily but the fridge doesnt work well on 12v the best it will do on 12v is keep things cool will not freeze food that is not already frozen,ice packs will assist but will defrost in time if fridge is on 12v
AnswerID: 297609

Follow Up By: Member - David.M.C - Wednesday, Apr 09, 2008 at 17:57

Wednesday, Apr 09, 2008 at 17:57
Thanks pepper2, wow 2/4 hours. Thats what i was afraid of.
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Reply By: Stu & "Bob" - Wednesday, Apr 09, 2008 at 17:12

Wednesday, Apr 09, 2008 at 17:12
I have found that the best thing to do is run the fridge for 24 hours on 240 AC prior to the trip. Have everything in the home fridge getting it as cold as possible, even frozen.

Load the frozen stuff into the bottom of the fridge first, and carry on from there. The last thing to go in the vehicle should be the fridge, and plug it straight in to power.

They are not very efficient at all IMHO, and don't take to travelling very well, but used in a stationary camping situation, are ok. They work best on gas, but not while on the move.

My .02
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Follow Up By: Member - David.M.C - Wednesday, Apr 09, 2008 at 18:00

Wednesday, Apr 09, 2008 at 18:00
good advice, sounds like you have something similar. thanks
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Follow Up By: Member - barry F (NSW) - Wednesday, Apr 09, 2008 at 18:06

Wednesday, Apr 09, 2008 at 18:06
Yep, that's fair comment, we put ours on AC 24 hours before leaving & then put stuff in out of the kitchen Frig, although we don't freeze the the ordinary items, only those that are meant to be frozen.
I think most people will tell you that DC is only good for keeping stuff cold that is already cold & that it does not have the ability to actually chill from scratch.
We have never stuck some ice in, but guess it would work but seems to defeat the purpose of having a frig. Cheers.
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Reply By: Member No 1- Wednesday, Apr 09, 2008 at 17:38

Wednesday, Apr 09, 2008 at 17:38
ice packs will only assist initially....after they become at or above the temperature that can be achieved by the fridge they will add to the power consumption...get a thrid battery or change over the second to a dedicated...contact dereck here who can help with all the stuff you need
AnswerID: 297614

Follow Up By: Member - David.M.C - Wednesday, Apr 09, 2008 at 18:04

Wednesday, Apr 09, 2008 at 18:04
at my last service i asked the bloke about changing the second battery so i could run the fridge and he said it cant be done??

Thanks for the lead on dereck. He is on holidays 5th to 18th according to web site.
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Follow Up By: Member No 1- Wednesday, Apr 09, 2008 at 18:37

Wednesday, Apr 09, 2008 at 18:37
it can be if its a td (so dereck said).....not sure about the V8...but none the less Dereck will tell you what can or should be done
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Reply By: Member - Andrew (QLD) - Wednesday, Apr 09, 2008 at 18:04

Wednesday, Apr 09, 2008 at 18:04
I would have thought that adding icepacks to a fridge (not a freezer so much) would make the whole thing act as an esky, due to the thermostat not allowing the fridge to run until at its trigger point. Does this sound like a reasonable assumption?

Andrew
AnswerID: 297622

Follow Up By: Axel [ the real one ] - Wednesday, Apr 09, 2008 at 18:18

Wednesday, Apr 09, 2008 at 18:18
Reasonable assumption on a COMPRESSOR fridge not however on a 3 way as once plugged into 12v there is NO on/off cycling ,, just constant power usage at somewhere between 8 - 12 amps ..
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Follow Up By: Member No 1- Wednesday, Apr 09, 2008 at 18:44

Wednesday, Apr 09, 2008 at 18:44
is that right?.."NO on/off cycling ,, just constant power"

must admit I dont know what they do to control temps when unit operating on 12vdc but i would have thought it would still (need to) cylce when temp got to desired set point...what stops the the fridge feezing all product when in cold ambients......????it doesnt sound right.

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FollowupID: 563676

Follow Up By: Axel [ the real one ] - Wednesday, Apr 09, 2008 at 19:44

Wednesday, Apr 09, 2008 at 19:44
No1,,,tis right , no cycling on / off in 12v mode , no actual thermostat control in 12v ,, is thermostat for 240v only , no cycling on /off either in 240v or when on gas ,,
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FollowupID: 563696

Follow Up By: Member - Andrew (QLD) - Wednesday, Apr 09, 2008 at 20:12

Wednesday, Apr 09, 2008 at 20:12
Interesting indeed if that's correct. I only have a 12/240V Waeco and Engel so do know much about these 3 ways.

Like Member No.1 mentioned, what limits cooling? Even those thermoelectric (peltier effect) ones seems to have a thermostat (well the one i had years ago did though i threw it away).

Thanks for the info Axel

Andrew
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FollowupID: 563711

Follow Up By: Member No 1- Thursday, Apr 10, 2008 at 07:11

Thursday, Apr 10, 2008 at 07:11
well i'll be.....
even those kero fridges had a thermostat..it was a manual one...you if you wanted more cooling turn the flame up...wanted less turn the flame down.

when we converted them to electric operation you fitted a 240v heater in the stack err chimney and a thermostat

maybe thats why they dont work too well under certain conditions...may need a little more heat to get an little more grunt??????
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Reply By: Robin Miller - Wednesday, Apr 09, 2008 at 19:48

Wednesday, Apr 09, 2008 at 19:48
Hi David

You could, but I think you would be better off just investing in a rated esky -like Coleman 5 day type for example.

They will preserve your ice better to and save on weight and space.




Robin Miller

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AnswerID: 297651

Follow Up By: Member - David.M.C - Wednesday, Apr 09, 2008 at 21:38

Wednesday, Apr 09, 2008 at 21:38
thanks Robin, thats worth a thought
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Reply By: Member - desray (WA) - Wednesday, Apr 09, 2008 at 22:34

Wednesday, Apr 09, 2008 at 22:34
The Waeco ca-35 is a cooler not a fridge, ( This low-priced absorption cooler accepts gas as well as alternating current from the power socket or direct current from the 12-volt cigarette lighter. The cooling capacity can be regulated up to a maximum level of 25°C below ambient. Owners of campers, caravans and motorhomes will prefer our sturdy Three-Way Absorption Cooler. Compact 35-litre capacity, yet truly mobile, the CA-35 is the ideal size for holiday households.Specifications: Capacity -35 Litres Voltage -gas/12V DC/240 AC Temperature Range -Cooling Capacity up to 25°C below ambient Dimensions ) The cooler should run off the car battery ok while the engine is running . The ice packs will help but if its 40deg outside its going to be around 15 deg in the cooler.
AnswerID: 297689

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