Gas Furnaces
EVOLUTION™ 98 VARIABLE-SPEED MODULATING GAS FURNACE 987M
AFUE EFFICIENCY: up to 98.3%
GAS VALVE TYPE: Modulating
PREFERRED™ 96 TWO STAGE GAS FURNACE 926T
AFUE EFFICIENCY: up to 96.5%
GAS VALVE TYPE: Two-Stage
LEGACY™ LINE FIXED-SPEED 90+% EFFICIENCY GAS FURNACE 915S
AFUE EFFICIENCY: Up to 96.5%
GAS VALVE TYPE: Single-Stage