Household appliances across the board have become more energy-efficient over the years—and that extends to water usage too. Dishwashers, for one, are more water-efficient than they’ve ever been. But ...

A company called Heatworks has opened preorders for its new countertop dishwasher. Called the Tetra, the dishwasher eliminates any need for plumbing connections and instead relies on a 3-liter water ...