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Reply to "Radiator heat vs. forced air for house renovation"
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[quote=Anonymous][quote=Anonymous][quote=Anonymous][quote=Anonymous]Forced air heating systems... "degrade indoor air quality because the buffer spaces where ducts are located are often moist and have large amounts of biological activity (crawlspaces), dust [b][size=giant]including cockroach[/size][/b] and other allergens (attics), and vehicle exhaust or solvent storage (garages). Thus an HVAC system may serve to increase contaminant loading in a space and may introduce contaminants " One study (of MANY) by University of Texas at Austin: http://www.caee.utexas.edu/prof/siegel/papers/conference/siegel_forcedair_hb_680.pdf[/quote] [b][color=red]EEEK![/color][/b] :shock: [/quote] The code calls for those ducts to be sealed and insulated and wrapped. Not an issue anymore. [img]http://www.energyvanguard.com/Portals/88935/images/duct-system-trunk-and-branch-hvac-design-endcap.jpg[/img][/quote] That stops [i]most[/i] cockroaches and other bugs from entering through the sides of the ducts. What about the vent openings in each room? Not only does that allow for living pests to travel throughout the house, it also allows for dead bugs, exoskeletons, eggs and feces to be distributed everywhere. I have forced air myself, and I have to get it cleaned three times as often as recommended because I'm OCD and it's really shocking to find out what DISGUSTING things thrive in an HVAC system.[/quote]
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