10 years Limited on Parts and Lifetime Limited on Heat Exchanger

Modulating heat - provides superior comfort over traditional 1-stage and 2-stage products, further reducing temperature swings in your home|Pro Series™ system - pair this model with a Pro Series™ variable-capacity or 2-stage air conditioner or heat pump and a Comfort Sync™ thermostat, for optimum performance|With the Pro Series™, you're in control of every aspect of your home's climate, as well as your energy costs, explore the Armstrong Air® Pro Series™|Variable speed fan motor - by changing the speed of its airflow during start-up, your furnace can adjust humidity levels and create more even temperatures throughout your home, while enhancing efficiency and reducing operating noise|Comfort Sync™ thermostat - when you pair this model with the Comfort Sync™ thermostat, the system will continuously monitor internal components for optimum performance|Comfort Sync™ puts you in total control of your home environment with remote temperature adjustment from anywhere in the world, even your couch, via smartphone app|When Comfort Sync™ detects that repairs and regular maintenance are needed, it alerts you or your dealer instantly, so your perfect environment never end|97% AFUE efficiency rating - this means 97% of your fuel is converted into usable heat, compared to an older furnace, this can potentially save you hundreds of dollars per year in energy cost|Quiet Combustion™ technology - uses a smaller btu input per burner for quieter start-up and operation while providing more even heat distribution|Advanced heat exchanger - made from stainless steel for maximum strength and crimped, rather than welded, Armstrong Air® heat exchangers are highly resistant to thermal fatigue and other stresses caused by repeated heating and cooling|During the testing process, they are subjected to temperatures that far exceed normal operating ranges, to ensure they will stand up to years of use|EHX™ technology - every Armstrong Air® furnace is engineered and built with EHX™ technology, a patented design that eliminates the hot spots that can shorten furnace life|EHX™ technology makes heat exchangers more durable and with its advanced airflow system, more air contacts the heat exchanger surface area for greater heat exchange, enhancing efficiency and comfort

AHRI Certified|CSA Certified|EnergyStar® Certified