Frost free
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- Certain bibcocks (sillcocks) are also known as frost frees.
The mechanism on a refrigerator involves letting the cooling element heat up for a short period melting any ice that has formed upon it and having it drain through a collecting duct at the back of the unit.
On a freezer dry air is circulated around the cabinet using fans. The cooling elements are separated from the main cabinet space, allowing them to be heated for short periods to dispose of any ice forming.
Some newer fridge/freezer models have built-in electronics that monitor how many times each door is opened and could also average the door open time which will automatically adjust defrost scheduling.
Advantages of frost free include the user not having to defrost ice buildup, food labels don't ice up so are easier to read and frozen foods don't stick together. NSV
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