Geothermal Heat Pumps

Heat Pumps

Ground source heat pumps use the earth, or a body of water, as a heat source in winter and as a heat sink during summer. This design takes advantage of the moderate temperatures in the ground (all over the world) to boost efficiency and reduce the operational costs of heating and cooling systems. They are the best form of all renewable energies as the energy from the ground is available 24/7. Geothermal ground sourced heat pumps are more efficient than air source heat pumps and have lower running costs. They do have a higher capital cost due to the ground heat exchanger that the heat pump is connected to. But, they are quieter, inside (less visual impact) and with less moving parts and maintenance.

Central Heating New Zealand were early pioneers of this technology in our country. Since 2007, we have been involved in more than 150 geothermal systems for residential and commercial projects. We continue to advocate these systems for discerning clients who value energy efficiency and the planet.

Horizontal ground exchangers are the most common for projects with plenty of space outside. Large trenches or pits are dug for pipework at approx. two metres deep. Vertical bores are used where space is more limited. Well water is another popular method used, especially in Canterbury and Southland. This can be seen in large projects in Christchurch City after the earthquakes that used aquifer water to heat and cool the buildings.

For further information please see our general or detailed brochures, or contact us to find out if a geothermal ground-source heating system is right for you.

— Slinky type ground source heating

— Well type ground source heating

Are you connected?

Thinking about gas central heating. The first step is to find out if your home has access to natural gas. The easiest way is to visit Gas Industry Company Limited’s website. Simply enter your address to view general status information about a connection. The next step is to choose your gas retailer. You can find a list of gas retailers here.

You can find and compare retailers’ gas prices through Consumer Powerswitch, a free service provided by Consumer NZ.

Our Projects

Central heating is tailored to suit your home and your lifestyle. No two homes are the same. Here are some case studies that demonstrate the flexibility of whole-home heating.

Each case study has a different heating combination that makes comfort a way of life for our clients.