Variable speed motor
Communicating furnace
Efficiency Rating (AFUE): 99
The quietest furnace in its class.
Efficiency Rating (AFUE): 80
Variable Speed Motor
High-efficiency, variable-speed gas furnace.
Efficiency Rating (AFUE): 96
ENERGY STAR® Qualified
Two-stage gas furnace with constant-torque motor design for even temperatures.
Efficiency Rating (AFUE): up to 80
Variable-speed gas furnace that heats the home evenly and efficiently.
Efficiency Rating (AFUE): Up to 96
Variable-speed gas furnace that heats the home evenly and efficiently.
Efficiency Rating (AFUE): Up to 96
Economical, standard-efficiency gas furnace.
Efficiency Rating (AFUE): 80