LII vs TDY Comparison

Lennox International manufactures and distributes heating, ventilating, air conditioning, and refrigeration products to replacement (75% of sales) and new construction (25% of sales) markets. In fiscal 2023, residential HVAC was 68% of sales and commercial HVAC and Heatcraft refrigeration was 32% of sales. The company goes to market with multiple brands, but Lennox is the company's flagship HVAC brand. The Texas-based company is focused on North America after the sale of its European HVAC and refrigeration businesses in late 2023.

Teledyne Technologies Inc sells technologies for industrial markets. Roughly a fourth of Teledyne's revenue comes from contracts with the United States government. The firm operates in four segments: instrumentation, digital imaging, aerospace and defense electronics, and engineered systems. The instrumentation segment provides monitoring instruments primarily for marine and environmental applications. The digital imaging segment contributes the largest proportion of revenue and includes image sensors and cameras for industrial, government, and medical customers. The aerospace and defense electronics segment provides electronic components and communication products for aircraft. The engineered systems segment provides solutions for defense, space, environmental, and energy applications.