Geothermal Heat Pumps


USA: Geothermal Heat Pumps: Geothermal Heat Pump Manufacturers





A kind of geothermal heating has been in use since the Roman period; this took heat from hot water and steam that exist near the Earth's surface. However the term geothermal heating is now used to describe ground source heating systems which use geothermal heat pumps. These can be used everywhere, and do not rely on hot water or steam near the Earth's surface. Geothermal heat pumps usually consist of three parts: a buried pattern of pipes, which act as the method of heat exchange with the ground, through which refrigerant liquid is pumped; a pump which forces the refrigerant through the system; and an air handler which conditions the air before it enters the house.

Geothermal heating pumps can be used to warm the building in winter and cool it in summer. Compared to conventional heating and cooling equipment, savings in energy consumption of up to seventy percent are claimed for geothermal pumps.


Some manufacturers of geothermal pumps supply pumps for both cooling and heating; other specialise in pumps for heating only. Some heat pumps can also be used for de-humidification, and for the heating of hot water.




While ground source heat pumps can offer large savings in heating and cooling costs, their design and installation is a complicated matter requiring professional assistance.


A professional assessment of the building's peak cooling and heating loads is necessary in order to size a ground source heat pump. If the system is under-sized it will not do the job. If it is over-sized there will be penalties in terms of unnecessary initial cost, decreased energy efficiency, and shorter system life due to excessive on and off switching.


The geothermal properties of the soil must also be measured. These include thermal conductivity and temperature stability of the soil. These properties can be measured directly in short term tests on one or more places in the site. The ground loops need to be accurately sized, and software tools are available for this purpose.


When selecting ground source heat pumps, you should choose models that qualify for the Energy Star label.




The following leading manufacturers have comprehensive websites, with information on all aspects, including online catalogs, designs and techniques for heat pumps, and care and maintenance.


Water Furnace. Water Furnace, based in Fort Wayne, Indiana, is a leading maker of geothermal heat pumps for both residential and commercial applications. Water Furnace geothermal heating pumps aim to save users up to 70% of their heating, cooling, and hot water costs. Water Furnace supplies three types of geothermal heating pump: All-in-One Systems, Split Geothermal Systems, and Hydronic Geothermal Systems. All-in-One geothermal heating pumps provide heating in winter and cooling in summer. These pumps replace traditional furnace and air conditioning systems.


ECR Industries. ECR Industries, based in Reading Pennsylvania, is a maker of geothermal heating pumps, specialising in direct exchange ground source techniques. Its current generation of geothermal heating pumps has been on the market since 2000. ECR Industries geothermal heating pumps comprise three main elements: the earth taps which serve as the direct source of heat exchange with the ground; the compressor unit which regulates the flow of refrigerant through the system, and the air handler where the air sent into the house is conditioned.


Publisher: Abacus Construction Index is a professionally edited directory of recommended construction websites, published by Extonet Ltd. It is financed only by Google advertising; no payment is received from included websites.


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