Best stacked washer/dryer unit ... Microban antimicrobial technology that helps to prevent odors. This electric dryer from Whirlpool comes in chrome shadow -- aka gray -- or white.

Whirlpool, and GE models. They sell front- and top-loading washers, gas and electric dryers, stackable models, and combination washer/dryer sets, and most are Energy Star certified. Before you buy ...