Open loop geothermal heat
Open Loop Geothermal Systems
of the time, geothermal heating and cooling systems rely on a closed loop. This is a loop that is installed
underground that contains anti-freeze, which is used to distribute heat from the house into the Earth during the
hot months of the year and to take heat from the Earth and bring it to the house during the cold months of the
year. Some lucky homeowners, however, will be fortunate enough to have the option of installing an open loop
system. This is, in many ways, a very desirable situation for anybody who has geothermal heating and cooling
installed, as it can cut down on costs.
some areas, open loop geothermal heat pumps are able to function because of the high water table. The reason for
this is because the pump can draw water from the water table, use it to either distribute heat to the house or draw
heat away from the house and then deposit that water back into the water table. Because the geothermal system is
closed other than the entry and exit points, it is not introducing pollutants into the water table, which is
important to individuals who are concerned about the environment.
Another real advantage of open loop geothermal systems is the fact that they require no
anti-freeze to function. Even though there are environmentally friendly types of anti-freeze available on the
market, some people do have reservations about these substances. An open loop geothermal system is simply using
water that is already present in the earth as a medium for taking or giving heat from or to the home. This is an
enormously efficient way to go and, it provides an affordable way to get geothermal heating and cooling installed
in your home.
will generally see open loop geothermal systems installed in commercial buildings. They can also work wonderfully
for residential buildings, however, and homeowners who are able to install them will typically be very pleased with
the results. The one part of these systems, sometimes referred to as pump and dump systems, that homeowners might
want to be wary about is the fact that they are dependent upon a potentially changing water table for their
geothermal heating and cooling. In a closed system, there will always be enough anti-freeze to accommodate the
heating and cooling needs. Water tables can be variable and there may be situations where an inadequate amount of
water remains to keep the system working efficiently.
loop geothermal heat pumps and open loop geothermal systems are both options that a qualified contractor can help
you learn about. Whether or not they are suitable for your area will be something you will have to discuss with
them. Every homeowner’s situation is somewhat different and only an expert will know for certain whether or not
this arrangement is suitable for you. If it is, however, these systems can be very affordable and can reduce some
of the cost of installing the ground loop. They do have their risks, however, so you'll want to make this decision
by - Phillip Rye
Are you building a home and looking for
information on how a geothermal heat pump can save you thousands? Visit my home design site at www.rye-homes.com for more information.
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