GS36NBI30 freezer The Siemens GS36NBI30 Freezer comes in a contemporary stainless steel look colour. The GS36NBI30 has an efficient A++ energy rating. The GS36NBI30 has a 4 star rating. It also has the frost free feature that maintains a constant flow of cold air through the appliance which prevents the build up of ice and frost on the inside of the freezer. It also has the added benefit of anopen door alert feature. To offer peace of mind the Siemens GS36NBI30 free standing Freezer also comes with 5 years warranty.