The feds challenged heat pump makers to build models that worked well in the cold. The first ones are about to go on sale.

But now, through the use of modulated technology such as two-stage and variable-speed compressors, heat pumps run more efficiently and can be installed in a wider range of geographies.

MODERN ERA: Today’s more advanced heat pumps leverage staged or variable-speed compressor technology that keep pace with changing temperature more efficiently and more accurately. (Courtesy of Johnson ...

The variable speed compressor allows us to change the speed at which we heat the water with the heat pump. By slowing that down we can get up to a 30% efficiency gain. And of course, we can speed the ...

Its single- and two-speed pumps are more affordable initially than the variable or specialty pumps, but variable pumps might be more cost-efficient to run throughout the year. All Jandy variable ...

A new solar-powered variable speed drive (VSD) model compatible with a wide range of water pumps has recently been launched. The Altivar solar ATV320 is Schneider Electric’s replacement offer for the ...

At only 120 lbs, the new V2 is the lightest twin-cylinder in Ducati’s history, featuring variable valve timing and ...

A SEER rating indicates how effectively an air conditioner or heat pump can cool a house ... have more efficiency features, such as variable speed and built-in Climate Set technology.

"It's kind of like supercharging your car engine," he said. A variable-speed compressor allows the heat pump to cycle that refrigerant through more quickly when the temperature is colder.

A new solar-powered variable speed drive (VSD) model compatible with a wide range of water pumps has recently been launched. The Altivar solar ATV320 is Schneider Electric’s replacement offer ...