The most popular RV air conditioning seems to be the roof mounted type you see on most new RV's, which are aerodynamically designed for less wind drag. This type of RV air conditioning tends to be the most efficient as they are a package unit and don’t have long runs of refrigerant pipe work.

 Secondly there is the RV air conditioning unit which is commonly referred to as an under bunk type, as the description implies these units are usually fitted in a void under a bunk. These units are also package units and are very efficient. They are quite good if you don’t mind cold or hot air blowing on your feet.

Another type of RV air conditioning is the split system type where your have the compressor unit mounted separately away from the smaller fan coil unit which can be mounted in a cupboard protruding through the door. These RV air conditioning units usually have to be installed by a refrigeration mechanic as there is pipe work to be run and the system has to be gassed up with refrigerant.

I have also noticed recently another trend where caravanners are installing small domestic type split air-conditioning systems in their RV's, particularly older style full height type. The compressor unit is installed on the draw bar of the RV and the fan coil unit is mounted in a high location on a wall inside the RV. Once again piping needs to be installed between the two units and the system gassed up for this type of RV air conditioning.