96% 2-Stage 98K Input Furnace Up to 5 Ton Constant Torque Multi-Position 21W
96% Two Stage 98K Multi Pos Up to 5 Ton Vari SPD 21W Eco Com
97% 98K Input Modulating Variable Speed Horiz/Down Gas Furnace Econet Enabled
98% 98K Input Modulating Variable Speed Upflow Gas Furnace EcoNet Enabled