Gas and Oil Furnaces MODEL XV90 - Premium heating meets super efficiency XV Two Stage Variable Speed The XV90 tow stage variable speed, our top of the line gas furnace, provides superior performance to meet your familay's comfort needs. TRANE XV90 features: Efficient performance The XV90 is rated with up to 93%+ AFUE. Comfortable, even heating Variable-speed-fan motor adjusts speed to provide a consistent flow of warm, comfortable air. Durable construction Materials for all components are tested again and again for long-lasting performance and durability. Better indoor air Add a Trane Air Cleaner to your system for filtering that removes more dust, pollen and other irritants throughout your entire home for a cleaner, healthier, more comfortable home.