I have previously made camp with the VW California (compressor will freeze), since it can not quite halten.Aber if the TC21 is once cooled properly haste as well as ice cold drinks (almost too cold) and, with outside temperatures of 27 degrees During the day when the fan ran what was listening but the evening was cool wenns one has of the TC21 nothing gehört.Wir slept in our VW Caddy at geöffnter door and the TC21 stood under the awning.