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Frost Free Fridge Freezer Frost-free fridge freezers work by circulating cool air continuously throughout the refrigerator and in the freezer compartment. This eliminates the need to manually defrost. These heaters are employed to prevent freezing of the cooling coils. The heaters are switched off and on. This means that they consume more electricity. Keep your freezer well-organised to minimize the risk of frosting. Labelling your drawers and shelves w