I do not intellect the 1 temperature zone - I maintain my reds toward the highest and whites/champagnes on the bottom and retain the environment on "white." KoolR wine cellar cooling units by Koolspace are "From the Wall" wall mounted cooling models for inside programs. These wine cellar cooler http://devinekdwr.collectblogs.com/23336536/helping-the-others-realize-the-advantages-of-wine-coolers