Patent ID: 8662367

Claim:
A method for improving the efficiency of an interior climate control system and the fuel efficiency of an automobile having front seats and a lower rear interior compartment behind the front seats, the method comprising the steps of: providing an inflatable device having a shell formed of an airtight, flexible and insulated material that is specifically sized and configured to fill a volume of space within the lower rear interior compartment of the automobile; installing the inflatable device within the lower rear interior compartment of the automobile; inflating the device and filling the rear interior compartment of the automobile up to a level extending between a top of the front seats and a bottom edge of a rear window of the automobile; and controlling air circulation within the automobile and preventing circulating air within the automobile from dropping down below the level extending between the top of the front seats and the bottom edge of the rear window and thereby avoiding eddy currents of trapped circulating air in the lower rear interior compartment.