Geothermal Heat Pumps

Geothermal Heat Pumps are Environmentally Friendly

The EPA has determined that geothermal heating and cooling systems are the most environmentally friendly heating and cooling systems currently available.

Geothermal Heat Pumps are the Most Cost-Effective

Research conducted by The United States National Renewable Energy Laboratory found that geothermal heating and cooling when compared to conventional systems is more cost-effective and efficient.  Geothermal energy incentives offered by federal, state, local, and utility sources can further increase cost savings.

How Geothermal Heat Pump Systems Work

Heat pumps work through heat exchanging.  During the summer heat is collected from the home and moved outside the home.  In the winter the heat is collected outside the home and dispersed inside.  Traditional heat pumps use the outside air which can range from very hot to very cold.  So on those hot summer days it becomes harder for the heat pump to dissipate heat making it less efficient.  Conversely on very cold winter days there is less heat for the heat pump to collect once again making the heat pump less efficient when you need it most.  Geothermal heating and cooling systems use the ground temperature to operate.  Just a few feet below the earths surface the temperature remains 45 - 70 degrees Fahrenheit.  This makes it easy for a geothermal heat pump to dissipate or collect heat regardless of the outside temperature.

Summer Operation of a Geothermal Heat Pump

Geothermal Heat Pump in the Summer

Geothermal Heat Pump
in the Summer

The operation of a geothermal heat pump is similar to an air conditioner in the summer. The heat pump pulls air in through the air return ducts in the home. The air passes over liquid filled tubes where the heat is extracted. The cool air is returned to the home through the air distribution ducts. The heated liquid then passes through small diameter pipes in the ground or pond where the heat is extracted. The cooled liquid is returned to the heat pump where the cycle is repeated.


Winter Operation of a Geothermal Heat Pump

Geothermal Heat Pump in the Winter

Geothermal Heat Pump
in the Winter

In the winter the geothermal heat pump reverses operation. Heat is extracted from the ground or pond by means of passing liquid through pipes buried in the ground or submersed in water. The warm liquid passes through small tubes in the heat pump. Air from the home is circulated through the heat pump where it passes over the tubes and collects the heat. The heated air is returned to the home through the supply ducts. The liquid is returned to the ground where it collects more heat and cycle repeats.


Geothermal Heat Pump Loop Systems

Geothermal heating and cooling systems come in the three basic types closed ground loop, closed pond loop, open loop(well-water system).  In closed loop systems small diameter high-density plastic pipe is buried in the ground or submerged in water.  A water based solution is circulated through the loop to move the heat.  In an open loop system water is collected from a water well circulated through the system and discharged in a pond or waterway.

Closed Ground Loop System

There are 2 types of ground loop systems a horizontal loop and a vertical loop.  

Geothermal closed horizontal loop system

The horizontal loops are the most common type.  It is used where adequate land is available.  The pipes are buried in trenches ranging from 100 – 600 feet in length, depending the geothermal heat pump and the space available.  

Geothermal closed vertical loop system

The vertical loop system is perfect for limited land is available.  This systems has the pipes installed in holes ranging from 100 – 400 feet deep using well drilling equipment.


Closed Pond Loop System 

Geothermal closed pond loop system

The pond loop geothermal heat pump is ideal if your home is located beside a large pond or lake.  Coils of pipe are anchored to the bottom of the body of water.  This system is very economical as no heavy or specialized equipment is necessary to install the loop.


Open Loop or Well Water System

Geothermal open loop or well water system

The open loop system can be economical in ideal situations.  Well water is used as a heat sink in the summer to remove heat and heat source in the winter.  Prohibitive factors in this system are how abundant the water source is, pumping costs must be reasonable, and state and local regulatory requirements for water discharge. 


Geothermal Heat Pump Repair and Installation

Our goal at Espyville Heating and Air Conditioning is to keep you comfortable year round.  While geothermal heat pumps are low maintenance and operate years without servicing, they have moving parts that occasionally need replaced.  We use only high quality replacement parts made for your unit.  If you are building a new home or replacing your heating and cooling system we will work with you to select the proper geothermal unit for your needs.  We sell systems manufactured by American Standard and Carrier two of the industry leaders in heating and cooling.  So whether you need repairs, replacement, or a new home installation our NATE certified technicians are fully trained to handle all your geothermal heating and cooling needs.

Photos of a Horizontal Loop Geothermal Heat Pump Installation

Call Today for Information and Estimates

Call James Davis
NATE Certified Technician

Espyville Heating and Air Conditioning is Located on Route 285 in Espyville, PA
Serving North Western Pennsylvania and North Eastern Ohio

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The national 800 number generated too many junk calls.