Transpired Air Collectors: Ventilation Preheating

Research output: NRELFact Sheet


Transpired air collectors preheat building ventilation air by using the building's ventilation fan to draw fresh air through the system. The intake air is heated as it passes through the perforated absorber plate and up the plenum between the absorber and the south wall of the building. Reduced heating costs will pay for the systems in 3-12 years.
Original languageAmerican English
Number of pages2
StatePublished - 1998

Bibliographical note

Revised March 2001. See FS-560-29913

NREL Publication Number

  • NREL/FS-550-24499

Other Report Number

  • DOE/GO-10098-558


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