Closed loop systems
contain water and antifreeze. Love's Heating & Air,
Inc uses and recommends
Environal antifreeze, because of its
non-toxicity. Polyethylene pipes are buried
beneath the earth’s surface either horizontally or
vertically. During the winter, the fluids in the pipes
collect heat from the earth and carry it through the
system and into the home. In the summer, the system reverses
itself to cool the home by pulling heat from the home and
carrying it through the system and placing it in the ground.
All Closed loop geothermal systems use water and should have
a freeze protection (antifreeze) of -17°C/ 15°F.
In addition to heating and cooling your home, this
process creates free hot water year around and delivers
substantial hot water savings. (50% to 75%). Many
residential systems are now equipped with desuperheaters
that transfer excess heat from the geothermal heat pump's
compressor to the house's hot water tank. A geothermal heat
pump doesn't supply 100% of a homeowner's hot water needs,
because the desuperheater provides less hot water during the
spring and fall when the geothermal heat pump system is not
operating as often.
Geothermal heat pumps are
relatively new technology that can save homeowners money.
They offer high
efficiency and low operating cost. According
to the EPA (Environmental Protection Agency)
pumps can save homeowners 30% to 70% on heating and 20% to
50% on cooling cost over conventional systems.
Water stores tremendous quantities of heat. Air on the other
hand, has a very low specific heat. There is 3472 times more
heat stored in a cubic foot of water as is stored in a cubic foot of
air. In other
words, it would be necessary to move 3472 cubic feet of air
through a heat exchanger in an air-to-air heat pump in order
to expose that heat exchanger to the same quantity of heat
store into one cubic foot of water. One cubic foot of
water contains 7 ˝ gallons.
Geothermal heat pumps are
very reliable and safe. Since there is no natural gas,
propane, or oil, there is no risk for combustion of fumes or
flames. Also, there is no risk for carbon-monoxide
poisoning. Geothermal systems also last twice as long. Given
that it is easier to transfer energy through water
than it is through air, geothermal systems don't have to
hard - which means less wear and tear.
The ground absorbs about
47% of the sun’s energy that reaches the earth. Geothermal
heat pump systems harness that free, renewable energy and
provide an environmentally friendly way to heat and cool
your home. Installing a Geothermal heat pump system is the
environmental equivalent of planting 750 trees or removing 2
cars from the road. The geothermal heat pump system does not
burn fossil fuels, which means no emissions or harmful
greenhouse gases are released into the air.