How Geothermal Works

No matter what climate you live in, the temperature throughout the year varies. For some climates that means blazing summers that cool to frigid winters, and Wilmington is no exception. What many people don't realize is that the temperature underground (regardless of climate or season) stays fairly consistent all year.

The ground is able to sustain a higher rate of temperature consistency because it takes in 47% of the sun's energy (heat) as it hits the Earth's surface. WaterFurnace geothermal systems are able to tap into this free energy with an earth loop. This technology is then utilized to provide your home or office with central heating and cooling.

How a Geothermal System Works Image

Geothermal Heating

In the heating cycle, a WaterFurnace geothermal heat pump utilizes the earth loop system to draw the heat from the ground. With delivery through a standard duct system, the geothermal system draws heat from the loops and distributes it as warm air. Options are available to use that same heat energy to provide hot water heating and radiant floor heat.

Geothermal Cooling

During the cooling mode, cold, refreshing air is circulated throughout the house by doing the exact opposite as the heating process. Heat is not extracted, instead it is driven into the ground. The warm heat is pulled from your home and moved back into the earth loop. Your hot water heating can be fueled by this technique as well.

Vertical Loop Horizontal Loop
Open Loop Pond Loop

For more information on how to get started with a geothermal system in the Wilmington area, contact O'Brien Service Company. Start saving on your energy bills today.