The ground contains a great amount of free potential energy. The source of this energy is the sun and rainwater. From approximately two meters down, the constant temperature of the soil is roughly 9 degrees Celsius. A geothermal system taps into this resource to heat or air condition your house at a fraction of the cost. In fact, geothermal energy can help you save up to 70% on your heating/air conditioning costs. In short, you would be investing in a renewable energy source since the ground's energy never runs out. Your initial investment would never be affected by increases in the price of natural gas, fuel oil, propane or electricity. You would not only be saving money but also contributing to the reduction of greenhouse gas.
Before you start building or renovating your property, a geothermal specialist will happily meet with you and perform a thorough energy evaluation by looking at your windows, exposure to the sun, and the insulation of your project. This evaluation will determine the best unit to suit your needs.
Based on this information, we will be able to proceed with the geothermal drilling. The depth of the borehole will depend on the tonnage of the unit. Pipes are then inserted into the borehole and the annulus is filled with a material that is specifically manufactured to improve conductivity. Once the pipes are inside, the refrigerationist attaches them to the unit which is located in the subsoil. A circulating mixture of water and ethanol conducts the ground's energy to reach the unit to transfer heat to the house and performs the reverse in order to air condition the house.
If you opt for a geothermal system, take advantage of several government programs offering various subsidies to lessen the initial investment.
In order to be eligible for any of these subsidies, you must deal with a company that is a member of the Canadian GeoExchange Coalition's Global Quality GeoExchange Program.