Transpired Air Collectors: Ventilation Preheating (Fact sheet) (Revised)

Research output: NRELFact Sheet


Many commercial and industrial buildings have high ventilation rates. Although all that fresh air is great for indoor air quality, heating it can be very expensive. This short (2-page) fact sheet describes a technology available to use solar energy to preheat ventilation air and dramatically reduce utility bills.
Original languageAmerican English
Number of pages2
StatePublished - 2006

Bibliographical note

Supercedes March 2001 version

NREL Publication Number

  • NREL/FS-550-29913

Other Report Number

  • DOE/GO-102001-1288


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