Geothermal Heat: What the Fuss is About

If you know someone in the heating and air business, you may have heard them mention geothermal heat pumps. While they may just sound like another heating/cooling system among the hundreds of flashy sounding options, Geothermal heat has become a resource which can cut down your utility bills up to 70%!

What is geothermal heat?

Geothermal heat is the constant temperature range produced in the earth. Despite the constantly changing weather outside, underground the earth maintains higher temperatures from absorbed sun rays.

How do geothermal heat pumps work?

Geothermal heat pumps work similar to regular heat pumps with a few differences:

  • ‘Loops’ of pipes containing a water solution are buried underground, and connected to your heat pump system. These can be installed horizontally or vertically in the ground near your home.
  • Using the water heater in tandem, heat is either extracted or exited through these loops, and ventilated through your home. It isn’t generating heat, but is instead moving the underground temperature around to facilitate your needs.

Compare this to how regular heat pumps work:

  • Air based heat pumps are just as sophisticated in technology to ground based. To sum up how an air based heat pump works: Heat is energy, and when a material changes from one state to another (liquid to gas or vice versa), it absorbs or disperses energy around it as needed. Heat pumps utilize this basic method with a compressor, and once energy has been gathered, disperses it throughout your home as needed.
  • When the desired effect is cooling, the process is reversed, and the heat is shifted out of your home through the same process of absorbing and dispersing energy.

How is a geothermal heat pump better than a regular heat pump?

  • Geothermal heat is energy efficient/green – as the heat is being pulled from a natural resource, the system doesn’t have to work as hard as an outdoor unit.
  • Cost is reduced – With less energy being used, your utility cost will virtually torpedo downward to a fraction of what you were paying before
  • Runs more quietly – a geothermal heat pump has a less noisy mechanism than a regular heat pump.
  • Installed inside your home – this means less repairs and maintenance from weather.

As always, it’s best to consult a geothermal heating and cooling savannah professional for an insight to what heating/cooling system would serve you best!