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Friday, July 17, 2009 10:41 PM CDT
Solar-powered heating system warms Charleston couple's swimming season
By ROB STROUD, Staff Writer rstroud@jg-tc.com
CHARLESTON — Kelly and Walt Edwards enjoy inviting family and friends over to use their backyard pool, but without a heater they had been limited to only a few months of comfortable swimming per summer.
Last month the couple expanded their backyard swimming season by having a solar-powered heater installed adjacent to their pool southwest of Charleston. They hope to recoup their investment within two to three years by heating their pool without the need to purchase electricity or natural gas to power a heater.
The Heliocol solar-powered heater, installed by Green Power 4 Earth of Algonquin, uses the pool’s existing pump to direct the pool’s water through a series of valves to the solar collectors. The pool water enters the collectors at the bottom and rises to the top through individual tubes. As the water rises, it is heated by the sun’s radiant energy.
Kelly Edwards said the collector tubes have been arrayed on an approximately 14- by 24-foot deck that sits at an angle, with a wooden fence between the deck and the pool. She said this solar power heater increased the pool’s water temperature from 74 to 86 degrees within a couple of days.
“It’s a pretty big system but it sure does a good job. It warms the water up really well,” Kelly Edwards said, adding they like to keep the automatic temperature control set at 88 degrees.
Kelly Edwards said they originally purchased an electric heat pump for the pool, but this pump went bad. She said they researched other options before choosing the solar-powered heater because it would be economical in the long run and curtail their electricity usage.
The solar-powered heater should add about a month and a half of comfortable swimming to the beginning of the season and a month and a half to the end, Kelly Edwards estimated.
“We really enjoy it. We have a lot of kids out here all summer long and they are getting a lot of enjoyment out of it,” Kelly Edwards said, adding they have five children and three grandchildren.
Walt Edwards said, as an example, that there were some days in April when temperatures topped 80 degrees, but the chilly pool water had not warmed up enough yet to match the air temperature. He said this will not be a problem now with the solar-powered heater.
Allan Hottovy, who started his Green Power 4 Earth solar product installation company about a year ago, said the Edwards’ solar-powered heater is the first he has installed in the region. He said these types of pool heaters are common in the south of the United States but are not widely used yet in the north.
Hottovy estimated that heating a 1,000-square-foot pool with natural gas costs more than $2,000 per year. He said the solar-powered heaters, which are typically roof mounted, reduce the energy costs of maintaining a pool by 80 percent.
“This little thing will really help people live within their budget,” Hottovy said, adding the solar-powered pool heater is designed to last for 15 years or longer.
Contact Rob Stroud at rstroud@jg-tc.com or 238-6861.
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Ken Trevarthan/Staff Photographer -- Walt and Kelly Edwards stand Wednesday afternoon near the swimming pool solar array installed outside their house in rural Charleston.
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Rohn Gordon wrote on Jul 19, 2009 12:14 PM: