The S9B1 furnace offers a constant torque ECM blower motor for comfort in cold weather, while maintaining the DNA that Trane^® is known for: quality and reliability. The S9B1 is rated at 92.1% gas efficiency (AFUE), providing energy savings and a consistent flow of warm, comfortable air in both winter AND summer.

92.1% AFUE

• Self-Diagnosing Integrated Furnace Control
• Silicon Nitride Hot Surface Igniter
• Durable Insulated Heat Exchanger Cabinet
• Automotive-Grade Gaskets
• Stainless Steel Secondary Heat Exchanger
• Compatible with CleanEffects™ Models