The FacilityAmazon Warehouse Distribution Center – BWI, MD A 200,000 sq. ft. distribution center located at Baltimore/Washington International Airport (BWI), supporting Amazon’s logistics operations where Amazon planes deliver packages via cargo containers to the inside of the building. The Heating Challenge The mechanical engineer contacted us because cargo doors were staying open longer than anticipated, and the designed hot air solution failed as hot air was escaping outside. Additional heating was needed upstairs for employees sorting boxes. The goal was to reduce risk of injury for the employees, eliminating loose clothing like winter jackets that could get caught in the conveyor belts moving packages. Implementation We met the engineers on-site and designed an overhead radiant heating system using over 70 heaters. HL3 Series gas-fired infrared heaters, vented through the roof, were installed near cargo doors. These 2-stage systems use low-fire and high-fire settings for increased comfort and efficiency. TW2 Series electric spot heaters targeted employee stations in the upstairs sorting stations. All units were integrated into a Building Management System for centralized control. Results The radiant heating solution, featuring HL3 Series gas-fired infrared heaters and TW2 Series electric spot heaters, successfully addressed the challenges posed by prolonged open cargo doors and the prior hot air system’s inefficiencies.  By installing 2-stage HL3 heaters vented through the roof near the tarmac-facing doors, consistent warmth was maintained even during extended door-open periods, preventing heat loss that plagued the original design. Upstairs, the TW2 electric spot heaters provided targeted warmth to employee sorting stations, ensuring comfort. Our solution addressed and solved the loose clothing issue, which reduced the risk of safety hazards around conveyor belts moving packages.  The integration of all units into a Building Management System allowed for precise control, optimizing energy efficiency across the 200,000 sq. ft. facility.  This solution not only enhanced employee comfort and safety but also supported Amazon’s operational goals by maintaining a productive work environment in a high-traffic logistics hub.