19-10-2007, 06:09 PM
posted to alt.home.repair,sci.engr.heat-vent-ac,uk.d-i-y,alt.home.lawn.garden,alt.hvac
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external usenet poster
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First recorded activity by GardenBanter: Oct 2007
Posts: 1
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Central Air Conditioners
Central air conditioners circulate cool air through a system of supply
and return ducts. Supply ducts and registers...
http://airconditioninginfo.blogspot.com/
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