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Frost Free Fridge Freezer Sale Frost-free freezers eliminate the need to defrost by using a timer and heating coil to periodically warm the coils, melting any ice buildup. This method is energy-intensive however it is time-saving and reduces hassle. Refrigerator freezers that are not frozen are more energy efficient, are less expensive to buy and last longer. They do require manual defrosting. 1. Energy efficiency Frost can accumulate in the refrigerator and block the shelves, leavi