A geothermal heating system uses heat from the earth’s core to pump naturally warm air around the home and keep the family warm for a fraction of the cost and without pollution from power stations.
Geothermal energy is found in the rock and fluid that forms the earth’s core. The heated rock warms natural springs and has been used as a heating system since the time of the Romans. Ancient Romans used a rudimentary geothermal heating system to heat their homes and public bathhouses.
Today, there is renewed interest in geothermal heating systems in NZ as a clean, sustainable way to heat properties. As New Zealand sits over two active plates, it has several geothermal areas from which to extract energy.
How does a geothermal heat pump work?
The heat pump works by extracting heat through an underground loop that contains water. This heat is sent to a pump that then disperses it as warm air throughout the home. The system is much more efficient than getting energy from the air because during colder months the air is cold, but the earth’s core temperature remains stable no matter what the temperature is above ground. This means that energy can be produced easily and cheaply.
Advantages of geothermal heat pumps
Installing a geothermal heating system costs around $35,000. The initial outlay is more expensive than a standard HVAC system, but it will generate massive savings. Geothermal energy users can expect to save up to 70% off the price of their standard yearly bill.
Moreover, it reduces greenhouse gas emissions and is healthier for the family and the environment. It also doesn’t make noise pollution or take up space in the home.
Geothermal energy is the world’s oldest central heating system. It’s pollution-free, utilising energy from the Earth’s core. Owners of geothermal pumps can enjoy a quiet, clean supply of energy for a fraction of the price.