I’ve got an Autoclime Fresco 3000. It fits on the back of the cab and uses gas so no water tank is required. Never had any problems, gets a bit chilly sometimes though.
http://www.autoclima.com/index.php?Itemid=1&id=74&option=com_content&task=view&lang=en
KW:
Wheel Nut:
We have the MAN units fitted in the side locker. You charge them up during the day and they run almost silently for 8 hours.Not had massive heat wave in France but they seem very good.
Didn’t even know MAN did such a thing malc,I thought Merc were the only ones that did a factory fitted cooler,a lot of Adam Offergeld Merc’s have it fitted now,all you see is two hoses running up the back of the cab.
KW i thought you had a merc? mine is built in and you charge it off the aircon for 4 hours in the day and it provides cold air for 8 hours at night, very good.