The same thing always happens when appliance shoppers step into Sub-Zero showrooms, almost like clock work.

  • They fall in love with a Sub-Zero model.
  • They see the price required to purchase the model.
  • They begin to question the investment required as “too expensive.”

This personal tug of war is often caused by the fact that most people believe all refrigerators are created equal. With the inclusion of the dual refrigeration system in all of its models, however, Sub-Zero refrigerators are not equal to all other fridges.

And here’s why:

What is a dual refrigeration system?

Dual refrigeration is what allows a Sub-Zero refrigerator to be unique, top of the line, and in often cases more pricey than other refrigerators.

In every Sub-Zero model, the temperature and humidity in the freezer and refrigerator are controlled individually. This is by-far the most optimal set-up, as the refrigerator and the freezer need to run at vastly different humidity levels to store the food properly. In most refrigerator models, one system maintains temp and humidity for the entire unit, which means temperatures are usually held “within a range” and only one humidity level can be held at any given time.

Because of the dual refrigeration systems, temperatures in Sub-Zero models can be restored quickly – and more accurately – than most competing models after remaining open. The accuracy is stunning – normally within 1 degree of the original temperature.

How does dual refrigeration make Sub-Zero refrigerators better?

Dual refrigeration – while it might seem would waste electricity – actually makes Sub-Zero refrigerators MORE energy efficient than their competitors. Because the refrigerator itself only has to restore temperature for one side of the unit after food removal, the refrigerator works less to restore temperature and humidity, saving energy usage and money on electricity bills.

Another benefit of dual refrigeration that puts Sub-Zero’s above their competition is that it allows for a sealed system. Dual refrigeration units limit air recycling to only one side of the unit. Each side is its own completely separate entity, allowing temperature control to be precise. The sealed system eliminates odor transfer, extends the life of fresh food, and prevents freezer burn.

Sub-Zero Dual RefrigerationSo, the next time you begin wrestling with the price required to upgrade to a Sub-Zero, keep in mind the benefits of dual refrigeration. Even their largest unit uses less electricity than a 100-watt lightbulb. It will lower your electricity bill and extend the life of your food.

Save money on food? You bet. Because the dual refrigeration system preserves food better than the competition, a Sub-Zero could lead to around $700 per year in savings at the grocery store. Think about what you could you do with that extra cash in your wallet.

The investment required to buy a Sub-Zero is not something to take lightly. But with the kind of savings it can provide on food and electricity, as well as the peace of mind that dual refrigeration and a sealed system impart, perhaps you can start spending more time watching football and eating quality homemade appetizers on Sunday and spend less time cutting coupons.

And who doesn’t want more time to eat homemade apps on Sunday?


Anthony Rocco

About The Author

Anthony Rocco

Founder and Editor of Appliance Buyer's Guide. With over 10 years experience selling appliances and designing kitchens, and having grown up in the business, I have a unique perspective on todays offerings in the Appliance world. Currently Managing Director at The Kitchenworks in Fort Lauderdale, FL.

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