Bosch said this week that its cold-climate heat pump, the IDS Ultra, unveiled at CES, is officially for sale. It's been just three years since the DOE's challenge to manufacturers, including two ...

The first heat pumps to pass the U.S. Department of Energy's Cold Climate Heat Pump Challenge might be in customers' homes by the end of the year.

Gradient's advanced window unit can heat and cool 500 square feet of your home, and it doesn't require any electrical work.

Here's what you should know about how heat pumps work, what kinds of heat pumps are out there, and how to decide if a heat ...