GeoT*SOL is a professional and user-friendly tool for planning and designing heat pump systems. The program offers you the choice between different heat sources, operating modes and numerous system ...

Heat pumps operate by moving heat from lower temperature areas to higher temperature areas. They typically take advantage of an electrically driven compressor and a closed vapor compression cycle.

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💡 ...