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While
improving the comfort in your home or business
we can help you save money on your utility
bills. Geothermal heat pumps help homeowners and
business owners find savings that are already
underfoot. Geothermal, or Earth energy, is
created from sources of heat under the Earth’s
foremost layer. It is a ground-source system
starts with something that is free and
constantly renewable: the constant-source
temperature available from the earth beneath our
feet, which stays at a stable temperature of
about 55-70 degrees throughout the year. It uses
a process called heat transfer to:
Pull heat from the ground in the winter to heat
your home.
Pull heat from your home back into the ground to
cool your home in the summer.
Utilize the extra heat available from these
transfers to fire up your water heater.
The ground-source
system has three parts:
1. An in-ground loop pipe
system for extracting heat from the earth in
winter or returning it to
earth in the summer.
2. A heat pump for
transferring earth heat to your home in winter
or returning it to the pipe system
in summer.
3. Ductwork for circulating
the air in your home year round.
Convenient Installation:
Many homes already have ductwork and heat
closets. These often can be utilized without
change for the ground-source system. The heat
pump is an electric compressor that goes in
your heat closet or garage. One unit suffices
for both heating and cooling. No separate
outside compressor is required. Gone is the ugly
box on the yard or roof , the noise emitted by
its interior fan and the risk of damage from
exposure or vandalism.
The Pipe
System:
The in-ground loop pipe system is the most
interesting part. It consists of a series of
small
diameter plastic pipes placed in holes drilled
200-250 feet deep. The pipes are heat-fused
together and filled with filtered water. The
pipe system is then connected to the heat pump,
which keeps the water circulating at about nine
gallons per minute at low pressure and only when
the unit is running.
The ground pipe
forms a “closed loop.” That means the water in
the pipes stays there. None is
added or removed after the initial installation;
your water system is not affected.
In the summer,
the heat pump removes heat from your house and
transfers it to the pipes. The
earth absorbs the heat. The loop piping is
typically guaranteed for 25 years but expected
to
last 50 years or longer. The indoor compressor
has an expected life of 20 or more years. The
only home owner maintenance required is
periodically changing air filters.
Official
Endorsements:
The Department of Energy (DOE) and
the Environmental Protection Agency (EPA) have
both
endorsed ground source heat pump systems as
among the most energy efficient and
environmentally friendly heating, cooling, and
water heating systems available. In a 1993
report, the EPA concluded that geothermal
technologies represent a major opportunity for
reducing national energy use and pollution,
while delivering comfort, reliability and
savings to
homeowners.
Ecology:
Geothermal heat pump system has been called the “organic
gardening” of heating, ventilation, and air conditioning
(AC) systems. It burns no fossil fuel and emits no
contaminants into the air. The system recycles Earth’s
natural heat throughout the year.
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