With one distribution system and one blower motor, we could now condition the air year-round, providing heat and humidity in the cold winter months and cooling and dehumidification in the warm summer ...

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.

Plus, other steps you can take to improve indoor air quality. Left to right: Air purifiers from Alen, Blueair, and Coway. By ...