A German energy company is building two enormous heat pumps that draw water from the Rhine to provide an appreciable 40,000 homes with heat.

Heat pumps work a lot like air conditioners, with the key exception that they can cool and heat your home — even though the name “heat pump” doesn’t exactly imply that.

Your furnace's job is keeping you warm. Get to know the parts of a furnace so it will do that job better and last a lot ...

It looks a little like a sleek window AC, but a new device from Chinese appliance giant Midea is actually a reversible heat pump that can both cool and heat a home—and it’s designed to heat ...