Geothermal Ground Source Heat Pumps
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Learning about Heat Pumps
Start with setting aside any myths you may have heard about heat pumps. Specifically, Geothermal Ground Source Heat Pumps are the most cost effective long term solution to heating your home, period.
Unfortunately, the heat pump industry took a bad rap because of some contractors. In order to maximize profits, contractors installed heat pumps that were too small and couldn't heat the home on the coldest days. In many cases the windows and doors leaked profusely, creating a situation that would have taxed any heating system, and virtually killed the heat pump. Early adopters of heat pumps were left with a bad taste in their mouth as a result.
Heat pumps are the least expensive way to heat your home, have the lowest impact on the environment and the least impact on the price of fossil fuels. Sized and installed properly, they are the smartest way to heat a home.
Geothermal Systems are Heat-pumps that transfer heat between the ground and your home as opposed to traditional heat pumps that transfer heat between the outside air and your home. Unlike outdoor air, the earth is a constant 55 degrees allowing for SEER ratings of 25 and COP ratings exceeding 5.0.
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How WaterFurnace Geothermal Ground Source Heat Pumps Work
No matter what the climate in Marshfield, Camdenton, Lebanon or St. Robert Missouri, the temperature throughout the seasons varies greatly. For our local climate that means blazing summers and cool to frigid winters. What many people don't realize is that the temperature below ground (regardless of climate or season) stays a fairly consistent 55 degrees all year. The ground is able to maintain a higher rate of temperature consistency because it absorbs 47% of the suns energy (heat) as it hits the Earth's surface. WaterFurnace geothermal systems are able to tap into this free energy with an earth loop. This technology is then used to provide your home or office with central heating and cooling.
During the heating cycle, a WaterFurnace geothermal system uses the earth loop
to extract heat from the ground. As the system pulls heat from the loop it distributes
it through a conventional duct system as warm air. The same heat energy can also
be used for a radiant floor system or domestic hot water heating. (Talk to FTS)
In the cooling mode, a WaterFurnace geothermal system air conditions your home
by reversing the heating process. Instead of extracting heat from the ground, it is
extracted from your home and either moved back into the earth loop, or used to
preheat the water in your hot water tank. Once the heat is removed from the air,
it is distributed through the duct system in your home. (Talk to FTS)
"Geothermal can only be installed in new homes..."
A WaterFurnace Geothermal Ground Source Heat Pump system can be installed in your existing home and connected to your existing duct system- not just a newly constructed home.
"Needs acreage to be able to install..."
A WaterFurnace Geothermal Ground Source Heat Pump system can be installed in as little as 100 square feet- that’s an area 10 feet wide by 10 feet long- so much for needing 50 acres! The system will fit in the back yard of a typical city lot!
"Geothermal is too expensive..."
With electric co-op cash rebates of up to $750.00 and a Federal Tax Credit of 30%, the typical total installation cost is cut in half.
"Payback is forever, if at all..."
Take a look at the COP comparison page. Just where can you get a $5 dollar pay back for every $1 dollar you spend in today’s market?
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Geothermal Ground Source Heat Pump Residential Loops
Three Basic Geothermal Energy Sources
Closed-loop systems circulate a water-based solution through a "loop system" of small-diameter, high-density polyethylene underground pipes. Closed-loop systems can be installed horizontally, vertically or in a pond. Open-loop systems use new or existing water well. Regardless of whether the system is open or closed, heat is transferred to or from the structure to provide year-round comfort, no matter what the outdoor temperature is. We have had success in the Marshfield, Camdenton, Lebanon, Waynesville and St. Robert areas with all of these types of loop fields.
Often used when adequate land surface is available. Depending on geothermal system needs and space available, pipes are placed in trenches that range in length from 100 to 400 feet.
The ideal choice for a geothermal heat pump when available land surface is limited. Well drilling equipment is used to bore small-diameter holes from 100 to 400 feet deep.
Pond (Lake) Loops
Very economical to install when a large body of water is available for use by the geothermal heating and cooling system. Coils of pipe are simply placed on the bottom of the pond or lake to capture the geothermal energy.
Open Loops (Well-Water Systems)
In ideal conditions, an open-loop application can be the most economical type of geothermal system. These use groundwater from a well as a direct energy source.
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