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Crawl space fans

jnarchitects | Posted in Mechanicals on


Does anyone have a recommendation for crawlspace exhaust fans?

Would an appropriately sized Panasonic be the simplest option?

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  1. GBA Editor
    Martin Holladay | | #1

    Panasonic fans have an excellent reputation. You would probably want to choose the WhisperWall model for rim-joist mounting.

    Overventilation entails an energy penalty, so your fan may need a timer to be sure so that it only operates (for example) for 20 minutes per hour. The recommended ventilation rate is 1 cfm for each 50 square feet of crawl space floor area.

    For more information on crawl space ventilation, see Building an Unvented Crawl Space.

  2. 02jack | | #2

    I would suggest you also look at Tjernlunds products. They have some very nice ventilation solutions.

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