These days, with the state of the environment at the forefront of everybody's minds, many people are looking beyond energy saving through high efficiency boilers to converting to renewable or sustainable energy sources. Some of the most popular sources are hydroelectric, wind, and solar energy, but there is a fourth source of renewable energy that we may soon see taking over the airwaves: geothermal. This article will explain how geothermal heating works and whether it would be feasible to invest in this type of energy for your home.

Geothermal heating means making use of the natural heat that is present deep inside the earth in the form of molten rock. We all know molten rock as lava and associate it with erupting volcanoes, but in fact this molten rock spends most of its time flowing through tunnels in the earth. Where we can find these tunnels, we can use their energy to heat up Guelph homes without actually burning anything at all or keeping this molten rock from doing its normal job deep inside the earth.

Geothermal heating is actually one of the oldest forms of renewable energy that has been used by humans. Early peoples used it to heat their homes since the Paleolithic era, but today's geothermal heating is much more sophisticated. Where early peoples were forced to live in caves or near hot springs where the molten rock flowed near the surface, today's Whitby real estate can be heated by drilling down deep into the earth to extract the energy from lava tubes that are nowhere near the surface.

Here is how the process generally works: by using underground imaging systems, lava tubes are located deep in the earth. Huge drills like the ones they use on oil rigs are used to drill down to the source, not into it but near enough to be very hot. Pipes are then fed down into the hole and connected to the heating pipes in people's Etobicoke real estate. The pipes are then filled with water, which heats near the lava pipe and cools up in the home, setting up a circulation. In essence, the lava is being much like an oil furnace.

The pros of this type of system are that except for the initial outlay and maintenance costs, geothermal energy is free. You are not beholden to any utility company to heat your Bradford homes. It is also environmentally friendly. The major drawback, of course, is that it can only be installed in a home that is located near a lava tube that can be reached with a drill. This limits its use to areas near tectonic plate boundaries, such as China, Japan, New Zealand, Iceland, Sweden, and countries and cities along the Pacific Rim.