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District always looking for ways to save cooling money
CHAMPAIGN – Energy costs at a Champaign school retrofitted with air-conditioning 10 years ago aren't much higher than at other schools, even though it operates year-round.
But costs vary greatly among the schools, depending on a building's use, district officials say.
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There are also other, cheaper alternatives for retrofit that provide fresh outside air heated 'for free' on sunny days -- www.solarwall.com. It's a black box/airchamber on a roof or southern/western wall that ties into the central air system. It sucks in fresh outside air, the sun warms it, and then it blows it into the building. Supplimental in nature, and doesn't work well during grey days and when the temp is sub-zero, but can dramatically reduce the length of the heating season.
Posted by Caliente on March 7, 2006 at 10:19 AM Suggest Removal
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