Gas Furnace Ion 97% AFUE 80000 BTU Two-Stage Multi-position 21-Inch-Wide Cabinet

The Gas Furnace Ion 97% AFUE 80000 BTU Two-Stage Multi-position (G97CTN0802120A) delivers high-efficiency comfort and dependable performance with an 80000 BTU input and a 97 percent AFUE rating. Designed within the Day & Night Ion communicating series, it features a two-stage modulating gas valve and a variable-speed ECM blower motor that precisely control heat output and airflow for quiet, energy-efficient operation. The 21-inch-wide cabinet allows flexible installation in upflow, downflow, or horizontal configurations and measures approximately 35" high - 21 1/2" wide - 29 1/2" deep, providing versatile placement and full service accessibility. Operating on 115-volt single-phase power with a 15-amp circuit, the furnace includes a 1/2" NPT gas connection suitable for natural gas or field conversion to propane. The sealed combustion system supports both direct and non-direct venting with PVC, CPVC, or polypropylene materials, while a temperature rise range of 35 to 65 degrees Fahrenheit provides adaptability across varying system designs. With built-in Ion system communicating technology for advanced diagnostics and modulation control, this furnace ensures consistent comfort, quiet performance, and simplified service for HVAC professionals.