Clean Breathing in Production Homes

May/June 2001
This article originally appeared in the May/June 2001 issue of Home Energy Magazine.
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May 01, 2001
For the best ventilation performance, whole-house air distribution is key.
            With houses today being built with tighter and tighter envelopes, ventilation systems play a more important role than ever before. Indoor air quality (IAQ),comfort, and both first cost and operating costs have become top priorities for production housing. Through our experience building houses with the Department of Energy’s Building America program,and its partner, the Louisiana Pacific Engineered for Life (EFL) program,we believe that the central-fan-integrated supply with fan cycling approach is the best value in basic ventilation strategies for production builders.         We know that, with single-thermostat systems, periodic whole-house mixing is critical to providing the best overall level of perceived IAQ and comfort. Distribution plays a large role in our ventilation strategies, not just for the dilution of pollutants that could harm residents, but for the dilution of pollutants that probably won’t harm them—but will annoy them—pollutants such as stuffiness and odors. And just as important, our strategies often allow us to guarantee comfort, defined as a difference of no more than 3°F from the center of any room to the thermostat ...

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