The Berko COS-E is series of wall heaters that provides supplemental warmth for offices, conference rooms, restrooms, stock rooms, and reception areas. It features a compact universal design, dual wattage and voltage, compliance with safety standards, and easy installation.

The heaters provide quiet operations as a result of using an impeller, which does not generate noise like fan blade vibration. The output wattage can also be lowered to accommodate any application or space.