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e-News #18: Underfloor Air Distribution Offers Energy Efficiency and Much More!

October 27, 2000
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The common practice of running air ducts through the ceiling may be, well, upside-down. Putting air systems under raised flooring can reduce building operating costs and improve HVAC equipment efficiency and occupant comfort. This strategy is most effective in new construction, but it is also appropriate for major retrofits. The key to the most effective underfloor air distribution systems is thoughtful design, especially when combined with other energy efficiency measures.

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e-News is published by Energy Design Resources (, an online resource center for information on energy efficiency design practices in California.

Savings By Design ( offers design assistance and incentives to design teams and building owners in California to encourage high-performance nonresidential building design and construction.

Energy Design Resources and Savings By Design are funded by California utility customers and administered by Pacific Gas and Electric Company, Sacramento Municipal Utility District, San Diego Gas and Electric, Southern California Edison and Southern California Gas Company, under the auspices of the California Public Utilities Commission.


Download: EDR_eNews_018.pdf
(0.2 MB PDF file)

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