What is dual refrigeration, and whats the advantage? Do all refrigerator units have dual compressors?
Sub-Zero is the only home refrigeration system with dual refrigeration, which simply means that the refrigerator and freezer have separate compressors. This has several advantages. Frozen foods need very cold, dry air. Refrigerated foods need somewhat warmer and much moister air. Each compressor maintains precisely the conditions needed on its side of the unit with the compressor running only when needed. In other refrigeration systems the single compressor has to pull double duty—wear and tear you avoid with Sub-Zero. In a Sub-Zero unit, thanks to dual refrigeration, air never passes back and forth between refrigerator and freezer. Which means you’ll never again have frozen foods picking up unwanted flavors from the fridge. No more onion-scented ice cubes. Yes, all combination refrigerator/freezer models have dual compressors.
