Gas Furnaces

Looking for top-of-the-line comfort, performance and efficiency? As its name suggests, the Infinity series takes them further than they’ve ever been. But if the top has a top, its name includes Greenspeed intelligence. Within this line, you can find the quietest model* and the most efficient model† of gas furnace you can buy. And thanks to Greenspeed intelligence, these furnaces offer unprecedented comfort and economy. No wonder they achieved the ENERGY STAR® Most Efficient qualification.

Whether you live in the cold North and need the high-efficiency of a condensing gas furnace or the moderate South and can do just fine with a little less efficiency, you'll still enjoy ultimate comfort with these Infinity series furnaces. Variable-speed blower technology and a two-stage gas valve help make them very quiet, not to mention efficient. If that's not enough, Comfort FanTM technology and other Infinity level features are sure to please. Models include condensing and non-condensing furnaces.

Efficient, quiet, flexible and durable, these powerful furnaces live up to their Performance name every day—no matter where you live.Highly efficient Performance 96 is ENERGY STAR® qualified and lets you enjoy the comfort of variable-speed blower-motor technology. It's Hybrid Heat system® compatible, so you can enjoy the smartest kind of heating savings year after year.

If efficiency is a hot button for you but budget is your primary concern, consider our Comfort 90+% AFUE gas furnaces. These high-efficiency furnaces excel at generating warmth throughout your home—while generating low energy bills though those long winter months.