Armstrong Air is a manufacturer of residential heating and cooling systems, including gas furnaces, air conditioners, heat pumps, oil furnaces, mini-split systems, and air handlers for single-family residential and light commercial applications. Founded in 1928 and headquartered in West Columbia, South Carolina, Armstrong Air operates as part of Allied Air Enterprises LLC, a Lennox International company. The brand's product line includes the Pro Series of premium residential HVAC systems, incorporating proprietary technologies including MHT Technology in air conditioners, QuietShift Technology in heat pumps, and EHX Technology in gas furnaces. ENERGY STAR qualified models are available across multiple Armstrong Air product categories. Residential HVAC contractors and dealers specify Armstrong Air equipment for new construction and replacement installations where a manufacturer-backed dealer network and multi-product system compatibility are priorities.
Product Lines
Pro Series Systems
Armstrong Air's Pro Series is the brand's premium residential system line, designed for the highest efficiency and comfort performance within the Armstrong Air product family. Pro Series systems pair Armstrong Air cooling and heating components with the brand's integrated controls and system-matching technology, specified when the project calls for top-tier efficiency and advanced comfort features.
Gas Furnaces
Armstrong Air gas furnaces incorporate EHX Technology for more even heat distribution. Available in upflow, downflow, and horizontal configurations and multiple AFUE efficiency tiers, Armstrong Air gas furnaces cover new construction and retrofit residential applications across climate zones.
Air Conditioners
Armstrong Air air conditioners feature MHT Technology, engineered for consistent and reliable cooling. Available in multiple SEER2 efficiency tiers with ENERGY STAR qualified models, Armstrong Air air conditioners pair with Armstrong Air air handlers and coils for system-matched installations.
Heat Pumps
Armstrong Air heat pumps incorporate QuietShift Technology to reduce compressor and fan noise during heating operation. Providing both heating and cooling from a single outdoor unit, Armstrong Air heat pumps are specified for mild-climate residential applications where a dual-function system is preferred.
Mini-Split Systems
Armstrong Air mini-split systems provide ductless heating and cooling for single-zone and multi-zone residential and light commercial applications. Specified for room additions, converted spaces, sunrooms, and multi-zone applications outside the reach of the central ducted HVAC system.
Why Contractors Specify Armstrong Air
Armstrong Air has been producing residential HVAC equipment since 1928, and as part of Allied Air Enterprises LLC, a Lennox International company, is backed by a manufacturer with broad technical and distribution infrastructure. ENERGY STAR qualified models are available across multiple product categories, and the brand's system-matching approach — pairing Armstrong Air outdoor equipment with Armstrong Air air handlers, coils, and thermostats — simplifies compatibility verification on residential HVAC installations.
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