This is a particularly useful implement if what you want to do is dedicate an unused closet or even an insulated shed to your wine. Acting a bit like a wall air conditioner, the WhisperKool keeps humidity and temperature in check in rooms from 300 to 2000 cubic feet. You can build a simple woodshed on the side of the house, insulate it with R-30 fiberglass insulation and put in a WhisperKool. Voila - instant wine cellar.