Gas Furnace Ion 96% AFUE 80000 BTU Two-Stage Multi-position 21-Inch-Wide Cabinet G96CTN0802120A

The Gas Furnace Ion 96% AFUE 80000 BTU Two-Stage Multi-position (G96CTN0802120A) is a Tempstar Ion Series high-efficiency furnace engineered for HVAC professionals who value precision comfort, quiet performance, and ease of service. With a nominal 80,000 BTU input and approximately 77,000 BTU output at 96% AFUE efficiency, this model features a two-stage gas valve and a variable-speed constant-airflow ECM blower motor that deliver consistent temperature control, reduced operating noise, and improved energy performance. The 21-inch-wide cabinet, determined by nomenclature, supports upflow, downflow, and horizontal installation configurations and measures approximately 34 1/2" height × 29 1/2" depth, providing a compact fit for mechanical rooms while maintaining full service accessibility. Operating on 115 V single-phase power, the furnace draws roughly 9 to 10 amps on a 15-amp circuit and includes a 1/2" NPT gas connection for natural gas with LP conversion capability. Constructed with a stainless steel primary tubular heat exchanger and a secondary condensing heat exchanger for optimal efficiency, the G96CTN0802120A also features a silicon-nitride hot surface ignitor, variable-speed induced draft combustion motor, and a fully insulated pre-painted steel cabinet for quiet and reliable operation. With sealed PVC venting for Category IV condensing performance, a temperature rise range of 30 to 60 °F, and full compatibility with the Ion System Control for advanced communicating diagnostics, this model delivers professional-grade installation flexibility, long-term dependability, and top-tier comfort for modern residential heating applications.