Frigidaire Furnaces Gas Gas Furnaces All of the Frigidaire Gas Furnaces feature the SmartLite® Control board. A revolutionary computer within your furnace that learns the heat-up characteristics of the igniter and then adjusts automatically. 97+% AFUE iQ Drive® Fully Modulating Ultra High Efficiency The iQ Drive fully modulating gas furnace by Frigidaire is the epitome of comfort, convenience and quiet. It continuously adjusts its heat output to exactly match the needs of your home – so you maximize your energy efficiency while enjoying constant comfort. 95.1% AFUE Gas Furnaces Extra-High Efficiency Besides meeting the Energy Star guidelines, extremely efficient Frigidaire 95.1% AFUE upflow gas furnaces help create a completely comfortable home with the latest technology to provide more balanced temperatures. An insulated door and sealed vestibule dramatically reduce noise levels, while the low-profile design means these furnaces can be installed in a variety of spaces. 92.1% AFUE Gas Furnaces Extra-High Efficiency This line of Energy Star Efficient furnaces include our tall and short furnaces, a variety of application features like, upflow/horizontal, downflow, variable speed and two-stage heating for better comfort. 80% Gas Furnaces High Efficiency Frigidaire 80% furnace has been carefully designed and engineered to give you outstanding energy efficiency and years of trouble- free operation.No detail has been left out. | 92.1 - 97+% AFUE | | Ultra Best, Fully Modulating |
| | Best, Two-Stage, Variable Speed |
| | Better, Two-Stage, Fixed-Speed |
| | Good, Single-Stage | | | 80% AFUE | | Best, Two-Stage, Variable Speed |
| | Better, Two-Stage, Fixed Speed |
| | Good, Single-Stage | |