Sample Page

What is GEOTHERMAL heating and cooling?

Geothermal heating and cooling utilizes the solar energy
stored just below the surface of the earth.

This stored solar energy is removed from the earth to heat your home during the winter months and similarly heat is removed from the home and deposited back to the earth during the cooling season. This is accomplished through the use of a geothermal unit located in the house and a high density polyethylene pipe buried in the ground.

Ground Loop Field

The heat exchanger also known as the loop system, captures the stored solar energy in the ground and delivers it back to the geothermal system in the house.

Your loop system is the heart of the geothermal technology. There are four different types of loops. MacDonald Heating and Cooling will help you select the proper loop system based on a site survey and by conducting a detailed energy analysis of your home.
Installing a geothermal loop system is like getting up to a 70% discount on energy for the life of your home!

Vertical Loop

Used mainly when land area is limited in retrofit applications of existing homes.

A drilling rig is used to bore holes at a depth of 150 to 300 feet per ton. A U-shaped coil of high density pipe is inserted into the bore hole. The holes are then backfilled with a sealing solution.

Horizontal Loops

Commonly used when the adequate land area is available.

Loop installers use excavation equipment such as chain trenchers, backhoes and track hoes to dig trenches approximately 6-8 feet deep. Trench lengths range from 100 to 300 feet per ton, depending on the loop design and application.
Installing a geothermal loop system is like getting up to a 70% discount on energy for the life of your home!

Pond Loops

An option if a large body of water is available within 200 feet of the home.

A 1/2 acre, 10 to 12 foot deep body of water is usually adequate to support the average home. The system uses coils of pipe typically 300 to 500 feet in length. The coils are placed in and anchored at the bottom of the body of water.

Open Loop System

These systems can be installed if an abundant supply of high quality well water is available.

A typical home will require a well producing 4 to 8 gallons of water per minute. A proper discharge area such as a river, drainage ditch, stream, pond, or lake must be present.

Check for local restrictions before selecting a specific discharge method.

Benefits of GEOTHERMAL

An investment in a geothermal system offers you more than a way to heat your home in the winter and cool it in the summer. Whether you are committed to improving the environment or you dread the hassles of home maintenance and upkeep, or maybe you just want to save on your monthly utility bills (and who doesn’t?!), a geothermal system is your total solution.

Safe and Secure – no fossil fuel exhaust means no chimney or flue is required. There is no opportunity for explosions or carbon monoxide poisoning, which makes a geothermal system the safest choice for your family.

Money in Your Pocket – geothermal systems are recognized by the EPA as the most energy efficient heating and cooling systems available today. Savings are produced by tapping into the free neergy naturally stored in the earth.

Earth Friendly – geothermal systems actually have a positive impact on our environment since they burn no fossil fuels and use very little electricity. This enhances our efforts to control pollution, green house emissions, and other issues that impact our everyday environment.

Noise Free Environment – no noisy outfoor air conditioner is required, so air conditioning no longer has to detract from your outdoor activities. An additional bonus: there is no unsightly outdoor unit to detract from your landscaping.

Less Maintenance and Service – a single system heats, cools, and produces hot water. Since this unit is located inside the home, it is not exposed to harsh outdoor conditions which could lead to mechanical issues.

Comfort, Comfort, Comfort – because of the way geothermal systems cycle, they do a better job of air purification and dehumidification than conventional systems. They also provide more consistent air temperatures throughout the house, eliminating hot and/or cold spots. Additionally, zoning can allow you to maintain a different temperature in different areas of your home.

Free Hot Water – a geothermal system has the capability of capturing reclaimed heat during the heating and cooling modes thus reducing a typical 4-person household’s water heating cost by 50% to 60%!

Longer Life Expectancy – you can expect your geothermal system to provide you with, on average, 20 to 24 years of reliable total comfort and savings as compared to a 13 to 15 year life expectancy of conventional systems. The loop field has an indefinite life expectancy.

Flexibility – there is no job too big or too small for a geothermal system. Our versatile equipment can be installed in existing homes, new construction homes, small shopping centers, and even the largest commercial structures.