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	Geothermal heating and/or cooling apparatus and method of using same - Patent 7048037
		A geothermal apparatus comprising a first pipe for receiving a heat exchange liquid therein and a second pipe for receiving the heat exchange liquid therein and having a web integrally connected to each of the first and second pipes, between such pipes for holding the second pipe at a predetermined distance from the first pipe.
		The geothermal heating and/or cooling system of claim 4 wherein the integral attachment is continuous between the first and second pipes for a substantial distance of the first and second pipes.
		The present invention relates generally to a geothermal heating and/or cooling system and more particularly to one having a first pipe and a second pipe which are integrally connected together and, in a preferred embodiment, one piece by an extruded process.
	www.freepatentsonline.com /7048037.html (2063 words)

	Geothermal Heating UK
		Geothermal heating is based on a very simple concept, the temperature of the earth at a given depth is always constant no matter what the conditions outside.
		Based on the geothermal heating requirements, the length and capacity of the loop fields vary, the bigger the structure the bigger the length and capacity of this geothermal heating component.
		The heat pump is the most essential component of the geothermal heating system, the heat pump actually converts the warm water or liquid it receives based on the requirement, into warm air, or allows the warm water to flow forward for various purposes.
	www.geothermalheatinguk.co.uk (729 words)

	Geothermal Residential Heating in Idaho
		Open-loop or closed-loop methods are employed to extract heat from geothermal water.
		In Twin Falls, geothermal water is used to heat a house and a church building with another church using geothermal heat near Almo.
		Geothermal or ground source heat pumps are another method to heat and cool homes.
	www.idwr.state.id.us /GeoThermal/heating.htm (860 words)

	Geothermal heating - Wikipedia, the free encyclopedia
		Geothermal heating is a method of heating and cooling a building.
		A heat pump uses the extracted water or transfer fluid as a heat source in winter and a heat sink in summer.
		Geothermal heating is one of the most efficient ways to heat a building, but it can have high initial costs.
	en.wikipedia.org /wiki/Geothermal_heating (540 words)

	Frequently Asked Questions regarding Geothermal Systems and Heat Pumps.
		Geothermal heat pumps, as well as all other types of heat pumps, have efficiencies rated according to their coefficient of performance or COP.
		A geothermal heat pump is an electrically-powered device that uses the natural heat storage ability of the earth and/or the earth's groundwater to heat and cool your home or business.
		The term "closed-loop" is used to describe a geothermal heat pump system that uses a continuous loop of special buried plastic pipe as a heat exchanger.The pipe is connected to the indoor heat pump to form a sealed, underground loop through which an antifreeze solution is circulated.
	www.aphgeothermal.com /faq.shtml (3524 words)

	Using Geothermal Energy in Montana
		Geothermal piping is often insulated to prevent heat loss from the pipe before the water reaches its end use.
		Geothermal resources as cool as 85° F are being used to heat Montana homes, greenhouses, and commercial buildings.
		Although this is the least efficient method of using geothermal heat, it has been used for more than a hundred years in some of the old hotels built near Montana's hot springs, such as the Diamond S Hotel near Boulder.
	www.montanagreenpower.com /renewables/geothermal (1846 words)

	geothermal heating district
		The City of Boise operates a geothermal heating district that serves the city's downtown area.
		Geothermal service from this system is provided by delivering hot geothermal water to a building at 155 to 165 degrees F, and collecting the water from the customer after the heat is removed.
		The special equipment needed to use the heat in geothermal water is usually more expensive than traditional furnaces or boilers, but the extra costs for new buildings can be minimized if included early in the planning stages.
	www.cityofboise.org /public_works/services/water/geothermal (220 words)

	Geothermal Education Office - Power From the Earth's Heat
		Geothermal "fuel'" - like the sun and the wind - is always where the power plant is; economic benefits remain in the region and there are no fuel price shocks.
		Geothermal water is used around the world, even when it is not hot enough to generate electricity.
		Geothermal district heating systems pump geothermal water through a heat exchanger, where it transfers its heat to clean city water that is piped to buildings in the district.
	geothermal.marin.org /pwrheat.html (2146 words)

	Chapter 523 — Geothermal Heating Districts
		A geothermal heating district may be formed for the purpose of supplying inhabitants of the district with geothermal heat as provided by this chapter.
		In case prompt payment of geothermal heating rent or charge is not made, a district may shut off the geothermal heating supply to the building, place or premises to which the district supplied the geothermal heating.
		The board of a geothermal heating district may provide in the improvement resolution that the construction work will be done in whole, or in part, by the district, by a contract or by any other public body as defined in ORS 174.109, or by any combination thereof.
	www.leg.state.or.us /ors/523.html (4943 words)

	Geothermal Heat Pumps
		Geothermal heat pumps use the relatively constant temperature of the ground or water several feet below the earth's surface as source of heating and cooling.
		Geothermal heat pumps are appropriate for retrofit or new homes, where both heating and cooling are desired.
		Geothermal heat pumps have demonstrated energy savings over air heat pumps because they extract energy from the constant temperature of the earth (via a water pipe buried in the earth) to condition the air in a home.
	www.toolbase.org /Technology-Inventory/HVAC/geothermal-heat-pumps (1332 words)

	FAQ of Grace Geothermal (Site not responding. Last check: 2007-10-30)
		A geothermal system is an electrically-powered device that uses the natural heat storage ability of the earth and/or the earth's ground water to heat and cool your home.
		The geothermal system inside the home uses a heat pump to concentrate the earth's thermal energy and then to transfer it to air circulated through standard ductwork to fill the interior space with warmth.
		In the summer, the process is reversed: heat is extracted from the air in the house and transferred through the heat pump to the ground loop piping.
	www.ggeothermal.com /GEO/faq.htm (1012 words)

	Geothermal (Site not responding. Last check: 2007-10-30)
		In a geothermal heat pump, the heat from the well water is taken and passed onto other water, reaching temperatures of up to 120 degrees.
		Geothermal heating systems are a great way to heat our buildings and water in winter and cool them in summer.
		Geothermal heating systems are highly cost effective, if there is already a suitable well on site, they can pay for themselves in two to five years.
	www.chewonki.org /Pathways/geothermal (495 words)

	Frequently Asked Questions about Geothermal Heating -- Niskayuna Central School District
		Geothermal heat pump systems have been in use for more than 20 years with thousands of installations nationwide, including in many different school and business locations.
		Before installing geothermal heat pump systems in the four Lincoln, Nebraska elementary schools, extensive studies and simulation models were conducted to determine their economic feasibility relative to other options.
		Any geothermal heat pump system design begins with an analysis of the subsurface conditions in the area where the wells are to be drilled, to determine the best location for the wells.
	www.niskayunaschools.org /district/BoardofEd/geothermalFAQ.htm (1655 words)

	Geothermal Heating and Cooling
		The geothermal heating and cooling system is more efficient because it uses the earth as its heat source.
		In winter, heat from the earth is absorbed by the antifreeze in the loop and transferred into the house.
		Heat from the house is absorbed by the liquid and given off underground.
	www.skrecc.com /geothermal.htm (558 words)

	The effects of geothermal heating on the ocean overturning circulation
		The effects of geothermal heating on the ocean overturning circulation
		The key diagnostic for the significance of the geothermal flux appears to be the ratio of the buoyancy flux supplied at the bottom to the residual buoyancy flux driving the downwelling plume through the base of the thermocline.
		Citation: Mullarney, J. Griffiths, and G. Hughes (2006), The effects of geothermal heating on the ocean overturning circulation, Geophys.
	www.agu.org /pubs/crossref/2006/2005GL024956.shtml (263 words)

	Warmair.com - Geothermal Furnace
		A geothermal furnace is a heat pump that uses water instead of air as a source of heat gain or loss.
		In heating mode, heat is extracted from water as it passes through the condenser, and released through the evaporator coil.
		In air conditioning mode, heat is extracted from the evaporator coil and released into water through the condenser.
	www.warmair.com /html/geothermal_furnace.htm (306 words)

	Geothermal Pipe Using Polyethylene (Site not responding. Last check: 2007-10-30)
		Every system consists of three major subsystems or parts: a geothermal heat pump to move heat between the building and the fluid in the earth loop, an earth loop piping system for transferring heat between its fluid and the earth, and a distribution subsystem for delivering heating or cooling to the building.
		Heat is collected from the water collected below the earth's surface and transferred to the air surrounding the pipe in a room or building.
		Using the ground or pond as a heat sink in the summer and a heat source in the winter, heat is transferred from the ground in the winter and extracted from the building in the summer.
	www.oxfordplasticsinc.com /geothermalheating.htm (1230 words)

	JustGeothermal Systems Website - How Geothermal Works
		Heat is removed from the water by refrigeration when water passes through the water to refrigerant heat exchanger.
		Geothermal drilling rigs are similar to a well water drilling rig, but is usually a geo-technical rig, used for seismic exploration operated by factory or industry trained geo-technical drillers.
		Inside the geothermal unit itself, heat extracted from the ground is upgraded to a usable temperature by the electrically driven compressor.
	www.justgeothermal.com /howgeoworks.html (3132 words)

	Geothermal Heating (Site not responding. Last check: 2007-10-30)
		It moves heat energy to and from the earth to heat and cool your indoor environment.
		This resource is constantly resupplied by the sun, the surrounding earth, and heat rejected while cooling during the summer.
		The universal definition of geothermal is "...pertaining to the heat of the earth." By using the earth to provide up to 50% of a building's total heating and cooling needs, GHP systems are truly geothermal energy made practical.
	www.lauryheating.com /geothermal.htm (425 words)

	EERE Consumer's Guide: Geothermal Heat Pumps
		Geothermal heat pumps (sometimes referred to as GeoExchange, earth-coupled, ground-source, or water-source heat pumps) have been in use since the late 1940s.
		Geothermal heat pumps (GHPs) use the constant temperature of the earth as the exchange medium instead of the outside air temperature.
		Even though the installation price of a geothermal system can be several times that of an air-source system of the same heating and cooling capacity, the additional costs are returned to you in energy savings in 5–10 years.
	www.eere.energy.gov /consumer/your_home/space_heating_cooling/index.cfm/mytopic=12640 (385 words)

	JustGeothermal Systems Website - FAQ
		Once we model the amount of energy it takes to heat, cool and provide domestic hot water for a home for a typical year, it is relatively easy to compare the operating costs of various types of heating systems delivering the calculated amount of energy; a Geothermal System being one of them.
		Geothermal System appear to be more than 300% efficient because they run on electricity and actually deliver more energy to the home than they consume in electricity.
		The heat from inside the ice box is removed by the refrigeration process and rejected into the space at the back of the fridge along with the energy used to do the work, (run the compressor).
	www.justgeothermal.com /faq.php (2609 words)

	IGSHPA \| What is geothermal?
		Ground source heat pumps (GSHPs) are electrically powered systems that tap the stored energy of the greatest solar collector in existence: the earth.
		Ground source heat pumps can be categorized as having closed or open loops, and those loops can be installed in three ways: horizontally, vertically, or in a pond/lake.
		During the summer, the system reverses itself to cool the building by pulling heat from the building, carrying it through the system and placing it in the ground.
	www.igshpa.okstate.edu /geothermal/geothermal.htm (228 words)

	Geothermal Heating & Cooling
		The most efficient and economical resource for heating and cooling your home is right in your own backyard.
		Heat is absorbed and carried to the geothermal unit, which extracts the heat, compresses it to higher temperatures and distributes it through the home.
		In either case, the process is reversed during the summer months by removing the heat from inside the home.
	www.pioneerec.com /geothermal.html (142 words)

	Geothermal Heat Pumps : ENERGY STAR
		Geothermal heat pumps are similar to ordinary heat pumps, but use the ground instead of outside air to provide heating, air conditioning and, in most cases, hot water.
		Because they use the earth's natural heat, they are among the most efficient and comfortable heating and cooling technologies currently available.
		By choosing ENERGY STAR and taking steps to optimize the performance of your heating and cooling equipment, you are helping to prevent global warming and promoting cleaner air while enhancing the comfort of your home.
	www.energystar.gov /index.cfm?c=geo_heat.pr_geo_heat_pumps (307 words)

	GEOTHERMAL HEATING AND COOLING
		The terms "geothermal", "ground source" and "GeoExchange" are used interchangeably with reference to heating and cooling systems that use the earth as a heat source and heat sink.
		Geothermal, or ground source, heating and cooling is a high-comfort, cost-effective, and environmentally friendly technology that takes advantage of the Earth's capacity to store energy in the from of heat.
		The geothermal heat pump accomplishes its heating and cooling tasks, known as "GeoExchange", by obtaining heat through a connection to the earth known as a "loop".
	www.soundgt.com /intro.html (564 words)

	Residential Environmental Design Featured Article - Geothermal Heating and Cooling Systems
		By tapping this steady flow of heat from the earth in the winter, and displacing heat in the earth in the summer, a geothermal heat pump can save homeowners 40 to 70 percent in heating costs and 30 to 50 percent in cooling costs compared to conventional systems.
		A ground source heat pump works in a similar manner, except that its heat source is the warmth of the earth.
		But because water transfers a greater volume of heat than air, the Ground source heat pump is able to deliver warmer air, typically about 110 degrees F. nother benefit of a ground source heat pump can be found when teamed with a desuperheater.
	www.reddawn.com /featart11-98.html (1076 words)

	Grace Geothermal - Geothermal Heating and Cooling Residential and Commercial
		Geothermal heating and cooling is the most economical, clean, non-polluting, proven heating and cooling technology available today.
		Geothermal heating is flame-less, therefore producing no health and safety concerns as associated with fossil fuels
		We are geothermal professionals, and are familiar with this regions climate conditions and local energy costs.
	www.ggeothermal.com (264 words)

	About Geothermal Heating & Cooling
		And this resource is constantly re-supplied by the sun, the surrounding earth, and heat rejected while cooling during the summer.
		The universal definition of geothermal is "...pertaining to the heat of the earth." By using the earth to provide up to 50% of a home's total energy needs, GHP systems are truly geothermal energy made practical.
		In cold weather this solution absorbs heat from the earth and carries it to the geothermal unit.
	www.schusterpump.com /Geo1.html (587 words)

	Kyler Brothers Services, Inc. (Site not responding. Last check: 2007-10-30)
		Geothermal uses the earth’s stable temperature to heat and cool your home.
		The system uses a compressor, a refrigerant and an indoor heat exchanger with a fan that is then connected to a duct system in your home.
		Geothermal works with nature, not against it like conventional systems, so it reduces the threats of acid rain, air pollution and the greenhouse effect.
	www.kylerbros.com /geothermal.html (496 words)

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