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 ...

Vernacular construction technologies are based on centuries of practical wisdom, refined through countless trials and errors. This process eliminates all irrelevant aspects, creating highly efficient ...

All eight manufacturers in the U.S. Department of Energy’s Residential Cold Climate Heat Pump Challenge completed rigorous product field testing to demonstrate energy efficiency and improved ...

The eight manufacturers that took part in the US Department of Energy’s (DOE) Residential Cold Climate Heat Pump Challenge are now taking their new, improved products to market. Heat pumps are a ...