How Does a Geothermal System Work?

Fall has arrived in Austin, TX, which makes it an ideal time to consider replacing an outdated heating and cooling system. Temperatures are apt to be fairly mild for the next few weeks, giving you an excellent window to put an older system out to pasture and consider something new. If you’re looking at installing a new HVAC system for your home, consider the benefits of geothermal heating and cooling. This innovative technology draws upon the infinitely renewable energy of the earth itself, providing inexpensive and environmentally-friendly temperature control for your entire household. How does a geothermal system work? We’ve provided a brief outline below.


Once you descend more than a few feet beneath the earth’s crust, the temperature remains the same no matter what the weather is like outside. A geothermal system simply taps into that potential. Coiled tubes are buried underneath the ground well below the frost line, and a mixture of water and antifreeze is pumped through it. They facilitate heat exchange between the earth and the liquid: warming it in the winter and cooling it in the summer. The liquid is then passed back into your home where the temperature change is transferred to the air.


Geothermal systems cost more to install than traditional systems and usually require a sizable piece of property. In exchange for that, however, they cost very little to run. Since the energy they draw upon is infinitely renewable, it reduces the monthly energy bill by a great deal, as well as remaining extremely environmentally friendly. And because the loops are below ground and out of the elements, they rarely require repair or wear out. Over time, they could save you a huge amount of energy costs.

Intelligent Air Services handles geothermal installation and repair services of all varieties!