Various forms of heat pumps—refrigerators, air conditioners, heaters—are estimated to consume about 30 percent of the world’s electricity. And that number is almost certain to rise, as heat pumps play ...

A heat pump heats and cools your home, functioning like a combined furnace and central air conditioner. Because it absorbs and moves heat from the air, it is exceptionally energy-efficient and ...

My sister recently replaced her headache-inducing gas stove with an induction stove. Only problem was that the U.S. building codes were recently changed to require newer super-circuit-breakers in ...