I took a look yesterday at the Waceo & Engel range at the local dealers and came away very much better informed...... I also brought home a fridge unit and a cooler in the same sizes/capacity for "testing"....the local dealer is keen to sell me something hey !
There are "fridges" and there are "coolers"
The fridges will take the contents down to what a normal fridge can do and the coolers work on a temp drop of 10, 20, 30degrees below than ambient temp outside, depending on which model one buys.
The Weaco cooler that impressed me ( I forget the model # ) held 30 cans and operates at 30degrees below the ambient temp, it comes with a 240V adaptor in the price of $329 !!!
Most of the other units required the additional cost of a 240V adaptor ( $50 and up in price !! )
So basically this thing will "cool" 30 cans to 10degrees on a 40degree day...that's good enough for what I want.
It also has the ability to "warm" and warms to 30 degrees above the ambient temp...... so 40degree pies on a cold winters day ( usually 8degrees down here ! ) when wheelin out in the heart of the Otways sounds very inviting to me....as for cold drinks then well it will be coffee for me but the cans wont be much warmer than 10 degrees any way if left sitting in an ordinary "esky" anyway.
The fridges wont warm at all.
I don't think that the argument of steel V's plastic really comes into it unless there are issues as to the actual storage location in/on the vehicle. in either case a secure mounting would be desired for both placements whether is on a tray or inside the rig.
After all I wouldn't want either unit wandering around the inside of the rig during a flop for example !
I also don't think it would be wise to have either unit sliding around a tray while driving a bloody rough section...common sense says it should be securely restrained.
The other side of the coin is weight, the weaco is slightly lighter being of a plastic construction over the steel Engel, weight is a consideration for me as is that location of that weight within the vehicle....every kilo matters. If steel is so good then why are we seeing more n more plastic" bumperbars, it wont be long and 4x4s will be fitted with plastic bullbars as std.
Current draw between the two makes was similar from what I saw yesterday with the only major difference being in the coolers which drew slightly more, the reason being that they don't switch on & off to maintain the desired temp as the fridges do...the coolers run non-stop yet they still had what I consider a low draw rating....... time for a test to see which one flattened the battery the quickest.....
I took the 2 deep cycle batteries out of my patrol and hooked up a unit to each battery and switched em on, both units had a BBQ tray of meat,couple of apples, 6 cans of coke, and a small carton of milk placed inside for my "test".
So this morning I wandered over to the shed to see how things were going...... heres the results...
The "cooler" was happily running and the contents were at -1 degree
The fridge had cut out, but the thing restarted as soon as I opened the lid to do the temp check. Inside the goodies were at 2degrees.
Ok so there's little difference there and it was rather a cool night here ( around the 15 degree mark )....time to test the batteries....
Down to the local Truck mechanics joint with the batteries for the ultimate draw test.....
Now I'm not interested in how many volts /amps/ or what ever are left in either battery , I want to know will they crank a V8 over and start it without any real problems...simple and straight up question hey.
The batteries were connected up and the man did his current draw test to the point where both batteries wouldn't turn over a brush cutter !...they were flattened completely.
The result was that the battery running the cooler was down further than the one connected to the fridge but would have had enough grunt to crank a V8 for 4 mins non-stop and at the cranking speed required to start the V8. The fridge battery held on for a further 1min & 30 seconds till it too dropped away in its cranking capacity for a V8.
I recon there is SFA difference in which drew the most from the batteries overnight ...perhaps the real difference may show up after a 48 hour period but that's well beyond what I would normally leave it connected for without an engine restart.
Again My circumstances of use will be different to most other users...my batteries are ALWAYS of the "deep cycle" variety and I run duel batteries in my rigs. Even the statey and the commodore run deep cycle batteries although they only run a single battery instead of the duel setup.
Realistically it comes down to the intended use and the frequency of that use as to which unit you purchase, for me it will be a "cooler", largely because I live in a cooler region and icy cold drinks aren't needed during winter but the ability to warm food is a huge plus for me.
Should I live in the hotter states like NT then I would be buying a fridge without hesitation simply because it can deliver a colder level with a slightly less battery draw over the "cooler" type.
Hope this helps those that are still a little confused.
Kingy