HCR specializes in engineered solutions for the frequently and constantly open doorways of high-usage freezers and coolers in grocery & food service distribution centers, refrigerated warehouses, and U.S.D.A. food plants. Besides providing clean, frost-free freezer doorways, there’s no other doorway product known that offers direct dollar payback through energy savings (often within the first year) and can help increase productivity, reduce doorway maintenance and improve employee safety. Unlike all other doorway products on the market today, the HCR product line was carefully developed based on recognized engineering principles, with specific attention toward applied psychrometrics and strictly observing the limits of the saturation curve.