For environments that demand quiet comfort, the Tranquility SL includes an UltraQuiet sound-attenuation package, double ...

R290, commonly known as propane, has a long history as a refrigerant and is now seeing renewed adoption in heat pump systems ...

The field-testing phase of the Residential Cold Climate Heat Pump Technology Challenge is over, and eight manufacturers that took part are in various stages of bringing new, Challenge-certified heat ...

Researchers have utilized measured data from a small energy community on a Finnish university campus to simulate its operation under various control strategies. The first control strategy prioritizes ...

A common refrain is that they’re only effective in mild climates. We put that idea to the test. Credit...Photo illustration by The New York Times; Shutterstock Supported by By Sofia Quaglia Heat pumps ...