Geothermal Heat Pumps
USA: Geothermal Heat Pumps: Geothermal Heat Pump Manufacturers
ABOUT GEOTHERMAL HEAT PUMPS
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
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.
CHOOSING THE BEST TYPE
While ground source heat pumps can offer large savings in heating and
cooling costs, their design and installation is a complicated matter requiring
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
When selecting ground source heat pumps, you should choose models
that qualify for the Energy Star label.
LEADING USA MANUFACTURERS
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, 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.
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.