An international research team has conducted the first empirical study on retrofitting PV-assisted two-stage heat pump (HP) systems in existing multi-family buildings. The research is part of the ...

An international research group has investigated how PV-powered heat pumps and district heating could be combined to heat a multi-apartment building in Sweden and have found that, of the three ...

There’s good reason that the image of a caveman learning to control fire is such an iconic and abiding cultural touchstone—being able to control the temperature of our surroundings represents our ...

Heat pumps are now thriving in some of the world’s coldest regions, with Norway, Sweden, Finland, and even Canada seeing record adoption. Modern systems—using variable-speed compressors, better ...

Heat pumps date back to the 1850s and are more energy efficient than furnaces or boilers. Image: Schon via Getty Images. Get the Popular Science daily newsletter💡 ...

The Energy Efficient Home Improvement Credit ends on December 31, and that means thousands in federal tax incentives will end as well. Prices are about to go up come New Year's Day. Under the ...