UnderAire Crawl Space Supply Fan, 220 cfm


Brand: Tjernlund

Mfr Part#: CS2

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$79.95 / each & Free Shipping
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Tjernlund CS2 Fresh Air Supply Fan is designed to boost fresh outdoor air underneath homes and porches. For optimal performance can be used in conjunction Tjernlund UnderAire Crawl Space Ventilators (V1, V2, V2D) to remove moisture in Crawl Spaces and prevent the premature rotting of support columns, joists, decrease termite activity etc.
This model is equiped with a factory installed and pre-wired freeze protection thermostat for each fan which will prevent operation of the fan below 35 F, hardware packet, and pre-wired 6" power cord.


  • Easy Installation;
  • Dual fan design delivers 220 CFM air delivery;
  • Installs on inside or outside passive crawl space vent openings or mounts to floor joists;
  • Includes paintable, heavy-duty galvanized steel mounting plate and freeze protection thermostat;
  • Works with Tjernlund UnderAire™ crawl space ventilators V1, V1D, V2D.

Technical Specifications:

  • Performance: 220 CFM;
  • Motors: 2x115 Volts/50/60 Hz/0.60 Amps;
  • Thermostat: Opens at 50°F;
  • Thermostat: Closes at 35°F;
  • Dimensions: 18” x 9” x 2”;
  • Mounting Plate Smallest;
  • Trimmable Dimensions: 13” x 6”.
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