During the hot days of summer, the U.S. Weather Bureau publishes a "Heat Index." This number tells us how hot the air feels. The Heat Index can be higher than the actual temperature, because relative humidity has a lot to do with our comfort.
A Trane Comfort System can control the humidity in your home, allowing you to set your thermostat higher and still be comfortable. And statistics show that you could save 6-8% in cooling costs for every degree you set your thermostat above 78°F.