Armstrong Air A802VK Gas Furnace

Pro Series™
Our premium Pro Series systems are designed to fit your life, delivering precisely the features you need to create your family’s ideal home environment. Featuring our most advanced communication technology, the Pro Series provides you with ultimate control over your air, enabling your family to enjoy consistent comfort and energy savings for years to come.
Consistent Comfort, Energy Saving
With an efficiency rating of up to 80%, this furnace operates with longer, gentler heat cycles at low capacity during mild weather, saving money while providing maximum control. When paired with our all-climate heat pump in a dual-fuel system, it automatically switches between gas and electric heating for optimal energy savings all year long, helping you save even more on utility bills.
Comfort Sync® Enabled
Our Pro Series communicating furnace models heat only the rooms you use, saving energy and reducing waste. They run quietly and consistently for better comfort and longer system life. Control your heating and cooling system from your phone or with Alexa and get alerts if something’s wrong—ideal for travel, pets, or everyday peace of mind.
Proprietary Motor Design
Our proprietary furnace design makes things easier and more affordable for you. With a smarter motor setup, the motor and its control unit are separated, so if a repair is ever needed, each part can be replaced on its own. That means lower service costs and less hassle. Plus, this design helps ensure smoother installation and better long-term reliability.
Modulating Gas Valve
Highly precise system combines a modulating gas valve with variable-speed technology2 to deliver consistent temperatures while saving energy. It constantly varies heat and airflow in increments as small as 5%, responding to outdoor conditions and household comfort needs. By comparison, a typical single-stage furnace operates at full heating capacity every time it cycles on.
Maximize Comfort and Efficiency with Dual-Fuel
Pairing a heat pump with your furnace creates a dual-fuel system that automatically switches between electric and gas heat for optimal efficiency. Enjoy consistent comfort, lower energy bills, and less wear on your furnace all year long.