In the past, refrigerator manufacturers also attempted to in- tegrate PCM into their appliances.However,problems like volume expansion upon temperature variation and particularly PCM leakage protection were impeding practical implementation. Recent successes in producing dimensionally stable, polymer- bound PCM seem to be promising for solving these problems. Chen et al. (2011) were able to reduce the power consumption of a refrigerator/freezer combination with a paraffin–polyethylene compound on the integrated, i.e. foamed, condenser by up to 12%.However,the quantification of the really achieved reduction is not clear,because of the different storage temperatures in the fresh-food compartments of the tested appliances.In Europe and Asia mainly wire-and-tube or plate-and-tube condensers are em- ployed, which allow for a considerably better heat transfer because of their larger surface area even under installation con- ditions (Bansal and Chin, 2003).