Amana
Manufactures an eco-efficient, top-mounted refrigerator/freezer using a non-CFC refrigerant with low energy consumption.

Sun Frost
Energy efficient CFC-free refrigerator/freezers using 60% to 90% less energy. Suitable for photovoltaic or other alternative power source.

Whirlpool
"Energy Wise Refrigerators" named winner in the 1994 Super Efficient Refrigerator Program. They use non-CFC refrigerants. Whirlpool continues to offer even higher energy efficiency in newer models.