| A 
                Warm Feeling Inside. Continuous 
                comfort, regardless of the weather outside - that's the kind of 
                warmth you can expect from the Trane XV 80 Variable Speed Gas 
                Furnace. And here's something else that will make you feel comfortable 
                - lower heating bills. Because the XV 80 is 80 percent efficient, 
                you'll save money all winter long. 
 Annual 
                Fuel Utilization Efficiency (AFUE) ratings effects the efficiency 
                of a gas furnace in convert fuel to energy. | 
 Your present 
                furnace more than likely allows a temperature swing of 3 to 5 
                degrees before turning on or off. With a Trane variable speed 
                furnace, those days are gone forever. Why 
                Variable Speed Makes A Difference. The 
                XV 80's variable speed blower motor is a "smart" motor, which 
                means it varies its speed depending upon your home's heating requirements. Plus, 
                the Integrally Controlled Motor (ICM) operates quietly, particularly 
                during first stage or low heat operation. During continuous fan 
                operation, the blower operates at 50 percent of cooling airflow, 
                so sound is minimized. And because 
                a variable speed furnace operates at slower speeds, your indoor 
                air quality will greatly improve. A slower fan speed means more 
                unwanted particles cling to the filter, allowing cleaner air to 
                flow into your home. | Two 
                Stages Deliver Even, Continuous Comfort. Most conventional 
                furnaces heat your home with a single "full-blast" speed. Not 
                the XV 80. It's two-stage heating virtually eliminates the discomfort 
                of temperature swings caused by short cycling - a situation common 
                to single-stage furnaces. The unit operates on the first stands 
                more than 80 percent of the time, delivering more even, continuous 
                heating. It switches to the high heat stage only when absolutely 
                necessary. And while the furnace may actually run longer, it ultimately 
                uses a lot less energy on lower-stage operation than single-stage 
                furnaces. |