Gas Furnace Infinity 96% AFUE 80000 BTU Two-Stage Multi-position 17.5-Inch-Wide Cabinet

The Gas Furnace Infinity 96% AFUE 80000 BTU Two-Stage Multi-position (59TN6C080C17--14) offers an 80,000 BTU input and approximately 78,000 BTU output at up to 96.7% AFUE efficiency, engineered for premium residential comfort with flexible installation in up-flow, down-flow, or horizontal positions. Its 17.5-inch-wide cabinet (about 35 high 29.5 deep) ensures installation flexibility and full service access for technicians. The unit features a two-stage gas valve paired with a variable-speed constant-airflow ECM blower motor, delivering smoother heating cycles, ultra-quiet operation, and superior humidity control when matched with compatible system controls. Operating on 115 V single-phase electrical service with a recommended 15 A circuit, it includes a 1/2 NPT gas connection factory-set for natural gas and field-convertible to propane. With a 4-way multipoise design supporting up to 13 venting configurations, and constructed with durable aluminized-steel primary and stainless-steel secondary heat exchangers, this Comfort Series furnace is built for reliable high efficiency, technician-friendly servicing, and long-term performance.