How to Plan for Solar Water Heating
Solar water heating is an effective way to save money on energy bills because it uses the power of the sun to heat water. Solar water heating systems include roof- or ground-mounted solar collectors to absorb the sun's warmth to heat water, which is pumped to a well-insulated storage tank. In hot, sunny climates, solar water heating can provide from 90 to 100 percent of a household's hot water needs. Research and planning are essential before you install a solar water heating system. Does this Spark an idea?
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Instructions
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Identify a suitable site for the solar collectors. The site is usually an unshaded rooftop or yard with a clear view of the sky.
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Estimate the solar collector area required to provide enough hot water for your home. About 20 square feet of collector is required for each of the first two family members. Add 8 square feet for each additional person if you live in the southern United States and 14 square feet if you live in the northern United States.
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Calculate the volume of the storage tank needed to collect and retain solar-heated water. For households of two to three people, allow for a 50- to 60-gallon storage tank. Consider 80- to 120-gallon tanks for households of four to six people. Contractors usually install storage tanks in attics or basements. So ensure that your home has space to accommodate the size of storage tank needed.
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Research your area's building codes, subdivision covenants and zoning ordinances. Obtain this information from your jurisdiction's zoning and building enforcement divisions. Most locations require a building permit to fit a solar water heating system on an existing building.
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Request a price quotation for solar water heating system installation from solar energy installation companies. Obtain at least three quotes to ensure you receive the best deal. Ask each company to provide details about some of its customers so that you can contact them for an unbiased opinion on the company's work.
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Tips & Warnings
Solar water heating systems use pipe-type collectors rather than photovoltaic panels to collect energy from the sun.
