Ventilation with heat recovery

Henrik M. Tommerup, Svend Svendsen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review


    This paper presents the experiences from the use of ventilation with heat recovery in several experimental single-family houses developed and built within the last four years to meet the new Danish energy requirements of 2005. Included are descriptions of the ventilation system components and the main functional demands as well as measurements of the thermal efficiency, electricity consumptions and building air tightness. The paper addresses the aspects of minimizing the heat loss from the duct system and the heat recovery unit (when placed in an unheated attic space) in order to obtain an acceptable efficiency. Furthermore, solutions to secure the air tightness of the building envelope are suggested. The paper does not address problems with condensate of water in the exchanger that may freeze in cold climate conditions. This complex of problem is dealt with in a separate paper.
    Original languageEnglish
    Title of host publicationProceedings of the 7 th syposium on building physics in the nordic countries
    Place of PublicationReykjavik, Iceland
    PublisherOddi hf
    Publication date2005
    ISBN (Print)99-79-91745-8
    Publication statusPublished - 2005
    Event7th Nordic Symposium on Building Physics - Reykjavik, Iceland
    Duration: 13 Jun 200515 Jun 2005
    Conference number: 7


    Conference7th Nordic Symposium on Building Physics
    Internet address


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