Lennox International is a global manufacturer of energy-efficient heating, cooling and refrigeration equipment serving both residential and commercial markets. The company designs and markets HVAC products for residential applications—including furnaces, air conditioners, heat pumps and indoor air quality equipment—under multiple brands sold through company-owned dealers, independent distributors and company-operated Lennox Stores, and manufactures light commercial unitary equipment and commercial refrigeration products for office buildings, retail centers, restaurants, warehouses and data centers. Revenue is generated through sales of equipment to distributors, contractors and end-users, as well as parts, supplies and service contracts, with operations supported by strategic joint ventures in water heating and ductless cooling and manufacturing facilities utilizing lean and Six Sigma methodologies.