Harnessing the sun’s extraordinary energy all begins with radiation. Radiation is used to heat water, and it’s water that will heat the air that flows through ducts to heat cold winter rooms. Solar thermal water heaters gather the sun’s energy to heat water for sinks and showers, and also to heat the air in a solar heating system.
Solar energy collectors soak up the energy from direct sunlight. That energy is used to warm up cold water. That water, now hot from this process, is pumped into a series of tubes that are attached to coils. Imagine a car’s radiator-this works very much in the same way. The hot water heats the coils, and cold air is blown over the coils. This is called heat transfer: This way the cold air becomes hot, and the hot water becomes cold again. That hot air blows through vents to heat a home, an office, or a building. Then the cycle repeats itself: The sun’s energy warms cold water, the water warms coils, the coils heat the air. All in a completely renewable form of energy consumption. The sun provides unlimited supplies of energy through direct contact with solar energy collectors.
There are two different ways to collect the sun’s energy. There’s the “flat panel” and the “vacuum tube.” Both are extremely efficient gatherers of this infinite natural resource. The “flat panel” is a flat, dark surface that quickly heats up under direct contact with the sun’s rays. Flat panels are the classic, most recognizable form of solar energy collection. They appear on roofs across the world.
The “vacuum tube” comprises four basic parts that all work together: A glass tube, a vacuum, heat-collecting wings, and an inner tube filled with water. The glass tube houses the entire apparatus. Glass is an optimal way to conduct and absorb the sun’s heat. The glass tube is vacuous. Vacuums remove the conductive heat loss and retain more heat and energy than flat panels. The inner tube running through the “vacuum tube” is flanked by heat-collecting wings. These help to absorb the heat from the vacuum into the water that flows through the inner tube.
Green technology and renewable energy sources are all over the news these days. Ours is a time when oil prices are often erratic. And ours is a world where billions in stimulus dollars are going to researchers, manufacturers, and implementers of renewable energy technologies. Installing a solar heating system updates a building to match the times by joining it to the ranks of the green movement. Because it harnesses renewable sources of energy, the solar heating system therefore produces no greenhouse gases. For any individual, homeowner, or business conscious of the harmful environmental effects of manmade greenhouse gases, this heating system is both a green-friendly and a cost-effective approach to a basic and necessary indoor amenity. Because solar heating does not use oil, gas, or any combustible fuels, it is a particularly financially sound method of harnessing energy. No matter the political climate abroad or the price of oil in distant lands, your heating prices cannot rise, and you will no longer depend on the world-market prices for combustible fuels simply to heat your home and hot water. An investment in a solar heating system has the potential to pay itself off in a matter of years. Remarkably, as the cost of fossil fuels may rise internationally, the worth of your solar system rises, too. And on top of that, any cost of your solar investment may be tax-free. Federal, state, and local rebates are also available. Heating a space with oil requires trucking in fuel every season, then possibly consuming that whole supply over the winter, only to repeat the process again the next year. Natural gas costs a heavy price, too. You pay for it as you use it. When these energy sources are depleted, they call for the expenditure of additional funds to renew them. Heating a home with fossil fuels is obviously expensive, but it also exacerbates greenhouse gases and encourages the continuous exploitation of the earth’s limited resources. A solar heating system takes advantage of the unlimited natural resource of the sun without any environmentally harmful bi-products.
Join the ranks of the green movement, save money, harness nature’s abundant gifts of renewable energy, and heat your home or building at the same time. With a solar heating system, your resource is the sun itself.
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