Armstrong Air


A proud heritage of American quality.

In 1928, Lennox Furnace Company—one of America’s leading manufacturing interests—created Armstrong Furnace in Columbus, Ohio. For nearly a century, we’ve kept ourselves at the forefront of quality, ingenuity and professionalism, creating heating and cooling products that exceed the expectations of customers and HVAC professionals alike. Today, our products are still proudly assembled in the United States under the Allied Air name.


A professional responsibility for quality and efficiency.

Our products are currently assembled in a state-of-the-art facility in Orangeburg, South Carolina, using computer-controlled equipment. Our commitment to quality and efficiency is evident in everything we make, and every product that leaves our facility is 100% run tested before shipping, because we believe in your peace of mind as well as your comfort.

Our manufacturing processes are environmentally friendly, and we do not include any volatile organic compounds in any lubrication or painting process. We use recycled materials when possible, use mostly electric vehicles in our factories, and generate zero wastewater in our manufacturing process. Furthermore, our air conditioners and heat pumps use non-ozone-depleting R410a refrigerant.


Professionals are never content with the status quo.

We are committed to your enduring comfort and efficiency, and equally committed to constant research and improvement. Our headquarters and our research and development facility are located in Lexington County, South Carolina, and include a multi-million-dollar, 40,000-square-foot research space that will allow us to continually improve our products and processes. Our design engineers work with leading-edge tools and technology that help them develop and test their ideas quickly and effectively. Because of this, we are able to take products from concept through approval and into the market quickly, helping us offer continually improved products and replacement parts.


The strength behind Armstrong Air.

Armstrong Air is proof that American manufacturing is alive and well. We’re also proof of how effective good people can be. When we say our people are our greatest asset, we aren’t just making a feel-good statement. We’ve based our entire business on hiring talented, dedicated professionals and giving them the resources they need to thrive. The right people can elevate the attitude, ideas, craftsmanship and commitment of any facility, and we’re proud to say our employees do so every day. We believe they help us create products that are better for homeowners, and better for the professional dealers who install them every day.

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