A refrigeration apparatus for mounting to a retail gondola includes a case, a door hingedly connected with the case, a compressor disposed within the case, a condenser coil disposed within the case, an evaporator coil disposed within the case, and brackets connected with the case. The case includes a top wall, a bottom wall, a left wall, a right wall and a rear wall defining a forward opening and a storage compartment for storing retail items. The case further includes a heat-conductive inner wall and a heat-conductive outer wall. The door is moveable between a closed position for covering the forward opening and an open position for providing access to the storage compartment. The condenser coil is disposed adjacent the outer wall and is in fluid communication with the compressor. The evaporator is disposed adjacent the inner wall and is in fluid communication with the compressor. The brackets extend rearwardly from the case away from the rear wall for engaging an upright of a retail gondola. A method for installing the refrigeration apparatus is also disclosed.