How Does Geothermal
Heating and Cooling Work?

Why Geothermal?

We are living on the biggest battery possible: Earth! Of all the solar energy that comes our way, 48% of that energy is stored in the Earth’s surface. Whether there's a heat wave or a cold snap, the temperature underground stays consistent year-round.

Geothermal HVAC systems (or geothermal heat pumps) use that stored energy to heat your home or business. When cooling, excess heat is stored back into the Earth – all at the highest efficiencies possible. But there are so many other benefits:

Geothermal Advantages

Efficient Technology
The most efficient heating and cooling system available especially when compared to traditional HVAC – up to 500% efficiency!
Quiet Technology
By having no outdoor unit, noise pollution is heavily reduced while dramatically increasing system life.
Renewable Technology
Geothermal is a renewable energy tech and is the most eco-friendly way to heat and cool your home.
Provides Hot Water
Save up to 70% on heating and cooling costs and up to 40% on hot water heating costs – geothermal does more work at a lower cost!
Great Longevity
Our geothermal systems are built incredibly well. The indoor systems last an average of 24 years, and the ground loops last indefinitely.
Consistent Conditioning
Geothermal improves home comfort. Our systems allow for smaller changes throughout the day, ridding your home of hot and cold zones.

How Geothermal Heats and Cools Your Home

  • Heating

    In the colder months, the geothermal unit pulls heat energy from the ground and uses it to warm the air within your home. With an electric “air-to-air” heat pump, the system would have to try and pull heat from the bitterly cold air. In contrast, geothermal is heating your home using underground warmth - all without fossil fuels.

    Heating Cycle
    Heating

    In the colder months, the geothermal unit pulls heat energy from the ground and uses it to warm the air within your home. With an electric “air-to-air” heat pump, the system would have to try and pull heat from the bitterly cold air. In contrast, geothermal is heating your home using underground warmth - all without fossil fuels.

    Heating Cycle
  • Cooling

    During the warm months, when in cooling mode, the geothermal unit works in reverse. It pulls heat energy from your home, warming the fluid inside the loop system. From there, the fluid is sent through the loop, gets cooled by the soil, and is pumped back to the unit to maintain your home's comfortable climate.

    Cooling Cycle
    Cooling

    During the warm months, when in cooling mode, the geothermal unit works in reverse. It pulls heat energy from your home, warming the fluid inside the loop system. From there, the fluid is sent through the loop, gets cooled by the soil, and is pumped back to the unit to maintain your home's comfortable climate.

    Cooling Cycle

What Is a Geothermal Ground Loop?

In the context of geothermal heating and cooling, the ground loop is an underground series of pipes through which a fluid mixture flows. The geothermal unit pumps this fluid through the loop pipe to transfer heat energy to and from your home. Let's look at a few different formats that a loop system can take!
  • Horizontal Loop

    In homes with above-average yard space, a horizontal loop could be the perfect solution. Holes are either trenched or horizontally bored and the piping is run underground parallel to the surface. These are popular in new construction or in more rural applications where space is ample.
  • Vertical Loop

    The vertical loop application is an extremely popular method for retrofitting a home with a geothermal system. Here, holes are bored up to 500 feet deep and the pipe is run vertically. This saves significant space in the installation process while still offering peak performance.
  • Open Loop

    If water quality and flow is optimal, an open loop may be a suitable solution for your home. The concept is simple: The fluid in the loop system is pulled from and discharged into the same source, like a well. In the right conditions, this application has the potential to be the most efficient solution!
  • Pond Loop

    When there’s a suitably large body of water close to the home, a pond loop can be a very economical solution for installing geothermal! The loop coils are submerged in the pond and anchored just above the bottom of the body of water, allowing for optimal heat transfer throughout all seasons.

Geothermal vs. Other Heating & Cooling Sources

All In One
No Outdoor Equipment
Uses Earth’s Free Heat Energy
No Combustion
Best For The Environment
Radiant Floor Heating Capabilities
Maximum Efficiency
Requires Electricity
Requires Fossil Fuel
Geothermal Heat Pumps Air-Source Heat Pumps Natural Gas Propane Fuel Oil Traditional Air Conditioner
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x x x x x
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500% 250% 95% 95% 83% 250%
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Why Homeowners Love Enertech Geothermal

“[Installing geothermal was] one of the best things we did building a new home. Our heating and air bills are rarely $180.00 a month. Most of the time it's $150.00 and that's the total electric bill. That includes 3200 ft2 home, a small cabin, electric to the barn, and electric to a new goat barn. Not bad!”
JAMES
ARKANSAS
“After the tax credits and ComEd discount the geothermal was only 2k more than a top-of-the-line propane furnace w/ ac installed. The amount saved on the electric bill made it way easy to afford the payments on geothermal and it cut my energy bills in half. Not to mention not having to buy propane. I wouldn’t trade my geothermal system for anything.”
ANTHONY
ILLINOIS
"Of course we’d have a geothermal system, at 400% efficiency compared to the high efficiency gas-fired furnaces of today at 97% efficiency, and also not at all dependent on fossil fuels. We feel so comfortable with our geothermal system, and it is the next technology for heating our homes!"
TOM
MICHIGAN

See How Much YOU Can Save With Enertech Geothermal

Make the switch to geothermal for $0 down, with financing plans starting at $140/mo.
Learn more about partnering with Enertech to experience how we provide energy-efficient products and services.