The other day on a routine service call, i came across an air conditioner that stated on the Energy Efficiency sticker that it was rated at 100% efficient. I thought that that, while possible, scientists were still a far way off. Is it actually possible now to have a 100% efficient AC unit, or is that sticker a typo or just wrong. I have never heard of a 100% efficient machine, and if they are now being made, I am going to highly recommend them to all my customers. Any input on this will be helpful. Thanks!