A method and apparatus for a retrofit energy device and system to modify, manipulate and optimize airflow in vertical open-case refrigeration units. An open refrigerated display case includes a refrigerated display area comprising one or more shelves, an air outlet and an air inlet opening into the display area and spaced from one another, and a duct configured to direct air flow out of the air outlet across the display area and toward the air inlet to form an air curtain across the display area, each one or more shelves provided

A merchandise display system for storing and dispensing merchandise is provided. The merchandise display system includes an outer housing, a transparent front door, a refrigeration unit, and a door that includes an extended canopy. The merchandise display system also includes a front grille for a refrigeration system having a surface adjacent a curved surface.

A merchandise display system for storing and dispensing merchandise is provided. The merchandise display system includes an outer housing, a transparent front door, a refrigeration unit, and a door that includes an extended canopy. The merchandise display system also includes a front grille for a refrigeration system having, a surface adjacent a curved surface.

A home appliance includes air inlets and air outlets that are defined at a machine room cover and configured to have flow rates different from each other. Accordingly, a design for the volume of air introduced into a machine room and the volume of air discharged to the outside of the machine room from the inside thereof may be facilitated.