The one-stage gas furnace has a high-efficiency rating of 96% Annual Fuel Utilization Efficiency (AFUE) High-efficiency, Constant Torque ECM (Electronically Commutated Motor) blower motor provides a consistent flow of warm, comfortable air, while operating quietly and efficiently Self-diagnostic integrated furnace control board (IFC) Matches with single- and two-stage AC and Heat Pumps for more system options Durable silicon nitride hot surface igniter Multi-port, in-shot burners Tubular, stainless steel primary heat exchanger Patented Vortica™ II blower design
| Make | Trane |
|---|---|
| Manufacturer | Trane |
| Model code | S9X1B040U3 |
| Series | S9X1 |
| Configuration | Upflow/Horizontal |
| Annual Fuel Utilization Efficiency | 96 % |
| Stages of Flame | 1-stage |
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