Bryant gas furnaces are manufactured by the Carrier Corporation at its manufacturing facility in Indianapolis, Indiana. As of 2015, Bryant offers 14 different series of gas furnaces, including the Preferred, Legacy and Evolution System product lines. Bryant's most energy-efficient model is the Evolution System 987M at 98.3 percent efficiency.
The Evolution System 987M offers two-stage operation and variable-speed air delivery. The Evolution System series uses Bryant's Perfect Heat and Perfect Humidity technologies to provide homeowners with the maximum comfort. The Perfect Light igniter ensures that the furnace is always ready to fire. Bryant's Evolution System model 986T includes these same features at 96.5 percent efficiency and a lighter price. Both models are Hybrid Heat capable, allowing combination with a heat pump system for the best heating efficiency.