Study proves air curtains more efficient than vestibules
Manufacturer-funded research study proves that air curtains are significantly more energy-efficient than vestibules. Results confirm that air curtain/automatic door entrance combination is up to 10% more energy-efficient in environmental separation performance, costs up to 75% less in labor/materials and conserves 50 to 2,000 sq. ft. feet of entryway floor space typically consumed by vestibules. Berner International Corp., New Castle, Pa.