Underaire crawl space ventilation fan

Read honest and unbiased product reviews from our users. Normal operation of the fan will resume once the temperature outside rises near 50° F. After opening carton, inspect thoroughly for . One fan and small faceplate for ventilation openings through brick foundations. Requires switch or dehumidistat to activate.

Multiple ventilators may be contro.

Increases air circulation to prevent condensation, mol mildew and wood rot.

Also helps vent radon gas, treated wood gases and odors, preventing them from migrating into living areas. Ventilators are installed inside crawl space behind existing foundation ventilation opening. Excess moisture in crawl spaces causes mol mildew and wood rot with the resultant odors often migrating to the living space above.

Crawl space fans quickly exhaust moisture and odors to the outdoors through existing passive vents. Two fans and large faceplate sized for ventilation openings through block foundations. Crawl space ventilation fans will increase air circulation, remove moisture and prevent condensation.

View our selection of crawl space ventilation tools before radon, treated wood off-gassing and odors affect your home. Excessive humidity levels in Crawl Spaces is the leading cause of premature rotting of support columns, joists, floors . UnderAire Deluxe One Fan Crawl Space Ventilator. Tjernlund CSCrawl Space Intake Fan, Supply (2CFM) Model. Add both to Cart Add both to List. One of these items ships sooner than the other.

Buy the selected items together. Self containe requires no connection to PVC. Installs behind existing passive vents.

Pulls fresh outdoor air from passive vents on opposite wall to dilute crawl space Radon levels and moisture. Moisture causes dry rot and fungus growth and increases the potential for termite infestation. With the Eliminator, air changes are increased dramatically for better . This product is an uncomplicated and economical way to stamp out odor and reduce humidity in your basement or crawl space. Constant operation helps vent radon, treated wood off-gassing and odors. Primary causes of excess moisture include:.

No or poor ground vapor barrier. Signs of excess moisture in crawl space.