S8B1 80 Single-Stage Builder-Grade Gas Furnace
Heating Stages: One
AFUE: 80%
S8V2 80 Two-Stage Variable Speed Gas Furnace
Heating Stages: Two
AFUE: 80%
S8X1 80 Single-Stage Gas Furnace
Heating Stages: Two
AFUE: 80%
S8X2 81 Two-Stage Variable Speed Gas Furnace
Heating Stages: Two
AFUE: 80%
S9B1 Gas Furnace
Heating Stages: One
AFUE: 92%
ENERGY STAR® qualified
S9V2 Gas Furnace
Heating Stages: Two
AFUE: 96%
ENERGY STAR® qualified
S9X1 Gas Furnace
Heating Stages: One
AFUE: 96%
ENERGY STAR® qualified
XC80 Gas Furnace
Heating Stages: Two
AFUE: 80%
XC95m 96 Modulating Variable Speed Gas Furnace
Heating Stages: Modulating
AFUE: 97%
ENERGY STAR® qualified
