Model

ULTRA HIGH EFFICIENCY GAS FURNACES
FF98MV
FF97MV
FF96TV
FF95SV
FF95ST
FF***LM98 (Retired)
FF***LM97 (Retired)
FF***LT96 (Retired)
FF***TT96 (Retired)
FF***PT96 * (Retired)
FF***TS95 (Retired)
FF***PS95 * (Retired)
HIGH EFFICIENCY GAS FURNACES
FF92SV
FF92ST
FF***TS92 (Retired)
FF***PS92 * (Retired)
ENTRY-LEVEL EFFICIENCY GAS FURNACES
FF80TV
FF80SV
FF80ST
FF***LT80 (Retired)
FF***TS80 (Retired)
FF***HT80 * (Retired)
FF***PS80 * (Retired)
FF***HS80 * (Retired)
FF***LS80Z (Ultra LoNOx) (Retired)
FF***TS80 (Ultra LoNOx) (Retired)
FF***CS80 (Retired)
FF***TT80 (Retired)