Sealing air leaks on my portable air conditioner

This video summarizes my initial attempt to improve efficiency of the EdgeStar AP14001HS, by covering various holes where room air leaks into the condenser compartment. I'm pretty sure (from comparing Internet photos) that the Whynter ARC-14 series is based on the same design.

Видео Sealing air leaks on my portable air conditioner канала Paul M