Wine Guardian Ducted Systems are versatile and self-contained cooling systems. Our ducted cooling systems offer maximum flexibility in design and installation. They also provide cooling for any sized area, whether you are storing in a residential, restaurant, or commercial wine cellar. Wine Guardian wine cellar cooling units provide superior performance, design flexibility, and aesthetic appeal for residential and commercial wine cellar environments. All Wine Guardian cooling units come with a standard system. They offer additional features. Such as integrated humidifiers, built-in electric heaters, low ambient temperature protection & handy ducting kits making it the best choice.