Simply put, geothermal systems use solar energy to make heating and cooling your home extremely efficient. And, it's not some magical process with complicated or dangerous materials. In fact, it's really a simple idea that's been around for over 50 years. You see, science shows us that 48% of the sun's energy is absorbed by the earth, meaning you can expect a fairly constant underground temperature between 45° and 70° F all year long.

We utilize this energy by flowing a water solution through pipes buried in the ground (ground loop system). By absorbing the heat from the earth in the winter, the loop system is able to move that energy to the geothermal system inside the house. Once there, the heat is condensed and transferred to the air that is circulated throughout the home, providing warmth when needed. This is all done without fossil fuels, meaning your family is safe from uncontrolled combustion, hazardous fumes and the risk of carbon monoxide poisoning.

Horizontal loop average ground temperature at 6ft 45° - 70°F Solar Energy Disbursement
  • 48 percent absorbed by earth
  • 18 percent reflected back by clouds
  • 6 percent absorbed by clouds
  • 21 percent absorbed by water vapor and dust
  • 7 percent reflected back by earth

It's not magic; it's science…

  • Vertical loop

    Vertical Loop

    This loop is used mainly when land area is limited and in retrofit applications of existing homes. A drilling rig is used to bore holes at of depth of 150 to 200 feet. A U-shaped coil of high density pipe is inserted into the bore hole. The holes are then backfilled with a sealing solution.

  • Horizontal loop

    Horizontal Loop

    This is the most common loop used when adequate land area is available. Loop installers use excavation equipment such as chain trenchers, backhoes and track hoes to dig trenches approximately 6-8 feet deep. Trench lengths range from 100 to 300 feet, depending on the loop design and application.

  • Pond loop

    Pond Loop

    A pond loop is an option if a large body of water is available within approximately 200 feet of the home. A 1/2 acre, 8 to 10 foot deep body of water is usually adequate to support the average home. The system uses coils of pipe typically 300 to 500 feet in length. The coils are placed in and anchored at the bottom of the body of water.

  • Open loop

    Open Loop

    This system can be installed if an abundant supply of high quality well water is available. A typical home will require 4 to 8 gallons of water per minute. A proper discharge area such as a river, drainage ditch, field tile, stream, pond, or lake must be present. Check your local codes for restrictions before selecting a specific discharge method.

The loop system, also known as a heat exchanger, is what captures the stored solar energy in the ground and delivers it to the geothermal unit. You might say this is the heart of our technology, and depending on your home's needs, there are four options available.

No matter which loop system you select, it will deliver up to 500% efficient comfort and savings years longer than your traditional HVAC system. Your local geothermal dealer will help you select the right loop system based on a site survey and a detailed energy analysis of your home. Once installed, your loop system is like earning up to a 70% discount on energy costs for the life of your home! Click on any of the four loop types below to learn more.

How the process works in your home

Forced Air Process

To heat your home, the TETCO system circulates the fluid in the loop system to extract heat from the ground. We then transfer that heat to the geothermal unit, where it is compressed to a high temperature. That air is then delivered through the home to heat your air via ductwork.

To cool your home, we simply reverse the process. Utilizing the cooler temperature of the earth as opposed to the warm air above ground, the TETCO geothermal system takes the heat from the home and transfers it into the ground via the loop system. Returning to the unit much cooler, the unit uses that energy to distribute cool air throughout your home.

Radiant Floor Process

To heat your home, fluid in the loop circulates, taking heat from the ground. Then, we transfer that heat to the geothermal unit, where it is compressed to a high temperature. This heat is circulated through a system of tubes installed in the home's sub-floor to warm the floors and radiate heat throughout the home.

Forced basement
W2w basement