High-efficiency front-loading washers are generally more eco-friendly than top loading washers because they use less water. Most of these washers are rated by Energy Star and use high-efficiency detergent, which contributes to less waste.
High-efficiency front loading washers are manufactured by many brands, including Samsung, Whirlpool and LG.
Samsung's "Eco Bubble" technology allows detergent to penetrate fabrics faster and more efficiently with cold water, which uses less energy than traditional warm-water cycles. As of 2015, Whirlpool offers a number of front-loading washers that have earned the highest possible energy-efficiency rating.
For added efficiency with any washer model, The Eco Market recommends using cold water whenever possible and only washing full loads.