Geothermal Heating

8/2/2019 Geothermal Heating

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Geothermal Heating/Cooling systems in Rochester NY

(source: http://www.gleasongeothermal.com )

No matter what climate you live in, the temperature throughout the yearvaries. Here in the Rochester NY that means blazing summers with cool tofrigid winters. What many people don't realize is that the temperature belowground, regardless of climate or season, stays consistent all year.

The ground is able to maintain a higher rate of temperature consistencybecause it absorbs 48% of the suns energy as it hits the Earth's surface.Geothermal Systems are able to tap into this free energy with a series of tubing buried within the earth (Ground Loop). This technology is then usedto provide your home or office with central heating and cooling.

Geothermal systems are made up of three basic components; anunderground heat exchanger, a ground source heat pump, and the systemof delivery. While temperatures above ground vary greatly during the year,temperatures below ground remain fairly constant. In our area of New Yorkthe ground temperature is 48 F 6 feet under the surface of the ground.

In winter, when the temperature underground is warmer than the airtemperature, tubes carrying 70% water, 30% environmental friendly anti-freeze liquid (Polypropylene Glycol) brings heat from the ground to the heatpump that extracts the energy and distributes it through the house.
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In summer, the system reverses its flow which extracts heat from the homeand restoring it with underground to complete the cooling mode. GleasonGeothermal Systems have the options of moving some of the excess heatthrough another heat exchanger called a desuperheater to produce domestichot water.

Heating To heat a geothermal heat pump uses the earth loop to extract heat fromthe ground. As the system pulls heat from the loop it distributes it through aconventional duct system as warm air. The same heat energy can also beused for a radiant floor system or domestic hot water heating.

CoolingDuring the cooling mode, the heating process is reversed which creates acool, conditioned air throughout the home. Instead of extracting heat fromthe ground, heat is extracted from the air in your home and either movedback into the earth loop, or used to preheat the water in your hot watertank. It is important to remember that a forced air delivery system is theonly systems that can be used to air condition your home. Radiant floorsystems cannot removed humidity inside the indoor tubing, and thus willcause condensation on the floor.


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Loop Systems

General Notes :

Our Geothermal Systems are measured in tons. One loop is needed forevery ton of heating and cooling.

Example: A new 2500 ft home may need about a 4 ton Geothermal HeatPump. This means they will need 4 separate loops.

Older homes that arent well insulated will need a larger tonnage systemthan newer homes because more heat is lost.

At Gleason Geothermal we use a non-pressured loop systems filled with amixture of 70% water, 30% Polypropylene Glycol.

We use a Fusion tool to connect the different loops to a manifold system.This fusion tool prevents joint decay.

Vertical Loop : This loop is used mainly when land area is limited and inretrofit applications of existing homes. A drilling rig is used to bore holes atof depth of 150 to 300 feet. A U-shaped coil of high density pipe is insertedinto the bore hole. The holes are then backfilled with a sealing solution.


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Horizontal Loop : This is the most common loop used when adequate landarea is available. Loop installers use excavation equipment such as chaintrenchers, backhoes and track hoes to dig trenches approximately 6 deep.Trench length is 150 feet.


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Pond Loop : A pond loop is an option if a large body of water is availablewithin approximately 200 feet of the home. A acre, 8 to 10 foot deepbody of water is usually adequate to support the average home. The coilsare placed in and anchored at the bottom of the body of water.


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Open Loop : This system can be installed if an abundant supply of highquality well water is available. A typical home will require 4 to 8 gallons of water per minute. A proper discharge area such as a river, drainage ditch,field tile, stream, pond, or lake must be present. We can also create aFrench drain for discharge purpose

ENERGY SAVINGS when using this system up to 70% !!!

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Geothermal Heating