Whether you live and work in the great plains or north where the temperature plummets, or in the south- east or west where summer is endless, the cost of energy has sky rocketed. So, either heating or cooling the back yard with an old fashioned pet door just wont do anymore. In some cases the energy waste is like opening and closing the door itself 4 or 5 times a day. The all-weather doors air pocket between 2 soft flaps, making it a great energy efficient insulator is the answer. The all weather series in small, medium, extra large and super