80% 100K Input 2 Stg Vari Spd Downflow 5 Ton Drive 21W Low NOx Furnace EcoNet
80% 100K Input 2 Stage Variable Speed Downflow 5 Ton Drive 21W Furnace EcoNet
80% 2 Stage 100K Downflow Up To 5 Ton Vari SPD 21W Eco Com
80% 2 Stage 100K Downflow Up To 5 Ton Vari SPD 21W Low Nox Eco Com