Researchers at the University of Zaragoza in Spain have proposed a new design for energy systems based on photovoltaic-thermal (PVT) panels integrated with an air-to-water heat pump via thermal ...

Panasonic and Australia's Reclaim Energy have teamed up to offer heat pump technology that can heat water up to 80 C, for both residential and commercial use. The offering pairs Panasonic’s CO2 Heat ...

Lloyd Alter is Design Editor for Treehugger and teaches Sustainable Design at Ryerson University in Toronto. While touring the laundry rooms and closets of Olympia, Washington after the Passive House ...

When Terry McIlveen built his home in Maine in 1997, he made the unusual choice to install radiant floor heating. “People thought I was nuts,” he says. However, since that time, radiant floor heat has ...

Conventional district heating systems are generally designed around the load. However, an alternate approach would be to design around potential heat sources, including the waste heat from power ...

HVAC system designers are faced with unique challenges when attempting to design energy-efficient HVAC systems. Code-driven energy efficiency requirements, owner’s project requirements (OPR), the ...