Geothermal HVAC systems are installed by connecting a series of pipes to a heat pump located inside the home. The pipes are buried in the ground, either horizontally or vertically, depending on the size of the system. The heat pump extracts heat from the ground and transfers it to the home, while also transferring heat from the home to the ground during the summer months. The installation process typically takes a few days and requires a qualified HVAC technician to ensure the system is properly installed and functioning correctly.