Geo - Keep It Simple & Solid (GeoKISS)
Ground Source Heat Pump Design (Geothermal Heat Pumps)
GSHP Design Software
GshpCalc 5.0.5 Now Available FREE as GshpCalc 6.0 which was Expanded from vertical loops only to also include surface water and ground water heat pump systems. Updated to metric units, double u-tubes, new heat pumps files, alternative loop pipe materials, and many other new features.