Information for the prospective owner from the Oregon Institute of Technology. Includes technology background, terminology and description of various mechanisms.

Free encyclopedia article covering the technology basics. Addresses background, thermodynamic aspects for different types of heat pumps.

Non-profit organisation which promotes awareness and proper deployment of the technology in Europe. Includes basics, news, publications, events calendar, project and regulatory information.

Describes the concept with animated graphics. Addresses installation concepts and mechanisms.

Explanation of the technology basics. Addresses heat extraction technic and mechanisms.

Information on the technology from the U.S. Geothermal Heat Pump Consortium. Includes detailed case studies of applications, publications, statistics and facts.

Coordinates private and public sector stakeholders to inform, develop and promote products and services. Includes mission statement, membership and technological information. [English, French]

Technical fact sheet about the benefits of residential systems. Includes technical background and installation concepts.

Information about the technology from the EESC. Includes technological backgrounds, ecological impacts and links to suppliers.

Promotes the use of the technology worldwide through education and communication. Includes technical and commercial aspects, case studies, publications and conference calendar.