Geothermal Systems

How Geothermal Works

With a geothermal system your property becomes an energy source for heating and cooling. Outdoor air temperatures fluctuate throughout the year as the seasons change; however, ground temperatures four to six feet below the Earth's surface remain relatively constant year round. That's because the earth's surface acts like a giant solar collector, absorbing almost half of the energy (heat) that reaches it from the sun. In Iowa, this constant temperature is approximately 53 degrees. A geothermal system circulates water through loops of pipe buried in the ground or in a pond, taking advantage of these constant temperatures to heat and cool your home. Geothermal systems are quite efficient and can save you anywhere from 30% to 70% on your monthly utility bills.

Heating Cycle - 
During the heating cycle, water circulates through the loop extracting heat from the ground. The heat energy is transferred to the geothermal unit which compresses the extracted heat to a high temperature and delivers it to your home through a normal duct or radiant heat system.

Cooling Cycle - 
In the summer, the process is simply reversed. Because the temperature below the earth is much cooler than the air temperature on a hot day, the geothermal system removes heat from the home and deposits it into the ground. The water circulating in the system is cooled by the ground and returned to the unit for cooling your home.

Geothermal energy makes sense on many levels — from the long-term cost savings, to preserving our environment and our health.

Whether you are interested in a system for a home, a school, a commercial building or a hog confinement, Harness Nature offers the extremely high efficiency of a geothermal system designed to meet your needs.

Give us a call or request a worksheet to start the process of getting your FREE estimate.

Ph 515-987-0518 Fax 515-987-0509

Toll Free 1-877-414-HNHN (4646)