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Geothermal Heat Pumps

Geothermal heat pumps (also known as ground-source heat pumps) take advantage of the fact that the ground below a depth of 1 m to 1.5m, and natural water sources, remain at a relatively constant temperature year round.

Heat pumps can efficiently transfer heat from lower temperature energy sources (such as soils) to useful higher grade energy (and heat your home), using a small amount of electrical energy.

Geothermal heat pumps are a very efficient way to heat and cool buildings, including homes, businesses, schools, and other public and private facilities.

DOWNLOAD: Introductory guide to GHPs in NZ - May 2014.pdf (3.11 MB)

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Photo supplied by Next Energy.


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  • Efficient system
  • Consumes less electricity
  • Durable
  • Low maintenance
  • Year-round comfort
  • Quiet operation
  • Low environmental impact
  • Low annual operating costs