https://www.frydge.uk/products/frost-free-rb34c632eww-fridge-freezer The Benefits of a Frost Free Freezer Fridge Frost free freezer fridges negate the need for manual defrosting. This is accomplished by regularly heating the coil and permitting any ice to melt. This water is then drained away into an empty drain pan before it evaporates into the air and keeps the freezer frost free. This is similar to the way the majority of refrigerators operate. Effortless Defrost If you own refrigerator freezers that need to be defrosted manually in a regular manner that involves disconnecting the appliance, taking out all food items and then laying down newspaper, then you'll understand how tedious and time-consuming this can be. You don't need to deal with this anymore if you have a frost-free freezer fridge. These models use intelligent cooling to break down the accumulation of ice and ensure that your food stays at the right temperature, without manual defrosting. Frost-free freezers work employing a heating system which regularly melts the ice crystals which form on the evaporator coil of the freezer. They are then flushed away as water. This stops ice from building up on the coil and hindering the flow of air, which could in turn lower temperatures and could lead to food spoilage. Certain brands offer self-defrost, whereby the freezer will heat up automatically to melt the frost. It then drains it through a drip tray. This happens during the defrost process of the refrigerator which happens every few hours. Some brands have a defrost thermostat that turns off the heater if it senses that the evaporator is completely defrosted. Another method to have an unfrosty refrigerator is to choose one that has a defrost heater built into the motor of the refrigerator's fan. It is activated by the defrost detector and works in a similar manner to the heating element that auto-defrosts. It's not as efficient as refrigerators that don't have frost however, it's less expensive to purchase