Refrigerators are one of the only appliances found in nearly every type of home, whether it's an apartment in suburban Atlanta, a high-rise condominium in downtown Chicago, a beach house in Hawaii or a trailer in Texas. The humble refrigerator is also the hardest working household appliance. Day and night, it's constantly running to keep all types of food and beverages cool, fresh or frozen.

The past year brought blockbuster headlines for U.S. manufacturing. Taiwanese electronics giant Foxconn unveiled plans to build a $10 billion assembly plant in Wisconsin that would make liquid-crystal display panels and employ as many as 13,000 people.