Geothermal Heating use Geothermal Energy for heating purpose. The basic concept is easy and straightforward. Ten feet under, the earth has fairly constant temperature around ~10 °C (~50 °F). In summer when atmospheric temperature of the home or building rises to that of ground temperature, Heat Pumps(Geothermal Heating System) is used to banish heat from that place to the ground and in winter, Heat Pump pull heat from the ground into the building or home. Heat pump has 2 parts, one is outdoor unit (condenser) and the other is indoor unit (evaporator coil). Heat Pumps are of four types. Three of them horizontal, pond and vertical run of closed circulation loops. The fourth one is the open loop, which make use of surface water or well for exchange of heat fluid to radiate around the system. After circulation, it goes to ground through a surface discharge or well.
Pros and Cons of Geothermal Heat Pumps
Pros and cons of Geothermal Heat pumps are discussed here to get an idea about their efficiency and whether they are cost effective or not.

Geothermal heat pumps provide hot water both in winter and summer at lower cost. Heat Pumps efficiencies are between 300-600 percent in freezing winter nights compared with 175-250 percent for air source heat pumps. Consumes less electricity and the emission of greenhouse gas is low. Heat Pump technology is simple and straightforward and these systems are exclusive. Operates quality and require simple maintenance. The credibility and economics of Heat pump depends greatly on soil condition, land availability, climate and setup cost which is higher than other energy using systems and is the main concern. Eruption to landscaping could be lot worse in retrofits during restoration by these heat pumps.
Conclusion

Over 2 million heat pumps are used for heating and air-conditioning around the globe. Some praise them for low input heat and easy to maintain while some reject them for their electrical input requirement and the initial cost which is the main concern. And the disruption to landscaping is of great concern in retrofits during restoration. And due to all those factors the geothermal heating is not so popular as system of fossil fuel. Extra cost can retrieve in 5-7 years. Federal government is also favoring the system by considerate tax credits. The dependability and savings after installing the setup gives the system an extra advantage. Surveys indicate that 95 percent homeowners using these systems will advise and refer others to use the system. EPA (Environmental Protection agency) classified Geothermal Heat Pumps as the environmentally clean, cost effective and efficient systems available today to homeowners.

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