Box for 3 way fridge

Hi Peter,
The only sugestion I can make is , It would be best if you could make the box double layer with insulation between the layers.....
It is truly amazing how hot it can get inside an aluminium box outside in the sun (Aluminium is a great conductor of heat....hence its us in Heatsinks etc).
Without the insulation the poor old fridge will have to work overtime to keep up with the heat resulting in increased power consumption etc....
Good Luck John

Peter make sure you have plenty of circulation around the back - they really need it! Mine works really well on 12 volts in the back of the vehicle near the air outlet - thus getting a steady flow of cooled air as it passes out through the vent. I've heard a number of people say they don't work well on 12 volts and I put the good performance of mine down to the circulation of air around it.

Amen to the above - my 3 way runs really well in the back of the Jack on 12 volts - on gas when stopped.
Must have plenty of circulating air around the back side (just like people :-) - 3 ways are great but they pack it in
fast if they don't have ideal conditions (like they have to be very close to perfectly level when stationary).
How about you let the 3 way take care of its own insulation and just build a protection box ?
dp