Infinity 96 Gas Furnace - 59TN6 | Carrier - Home Comfort Backed by the intelligent Infinity control and a variable-speed blower, this two stage furnace will run in low stage up to 90% of the time. Longer, low-stage run times give you better energy efficiency, better temperature control and increased comfort.4.5/5(97)Brand: CA Carrier Infinity 96 Furnace Overview - furnacecompare The Infinity 96 is Energy Star rated in all sizes, with an AFUE of up to 96.7%. This is a two-stage, 4-way multipoise model with a variable speed blower motor. It will operate in low stage up to 90% of the time to prevent temperature swings, save energy, and provide quieter performance. The design of the Carrier Infinity 96 Furnace is CSA Furnaces | Gas Furnaces | Furnace Heaters | Carrier Additional comfort enhancing functions on select models include Ideal Humidity System ® technology for relief from hot and sticky summer air and ComfortFan™ technology, which allows you to select furnace fan speeds from the Infinity System Control. Carrier furnaces combine quality and performance in a durable, attractive and compact cabinet.