The CellarPro 1800XTSx-EC cooling unit was designed for cooling wine cellars up to 400 cubic feet (assuming fully-insulated/vapor barriered walls/ceiling and no glass). if you have glass to confirm if this unit is suitable for you. This model allows for installation through an exterior wall and has a weather-protecting cover on the rear side.
The exterior of the unit/cover must have at least 5 inches of clearance on the rear side, and 18 inches of clearance below the cooling unit, outside the cellar. You must also provide at least 8 inches of clearance inside the cellar in front of the cooling unit.
Please note that the manufacturer's warranty does not cover damage from marine exposure (within 5 miles of the ocean). In these environments, you will need an applied coating, such as Insitu®, to protect against corrosion.