2014 Geothermal heat pumps in New Zealand : an introductory technical guide. Lower Hutt, N.Z.: GNS Science. GNS Science miscellaneous series 54. 59 p.
Abstract: This introductory guide details the installation and operation of geothermal heat pumps (GHPs), also called ground source heat pumps or geo-exchange systems, in New Zealand. It is intended to assist a range of stakeholders by providing an overview of geothermal energy, general technical information on the operation and installation of GHPs and relevant New Zealand environmental and regulatory considerations. (auth)