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Ventilation / Lomanco Crawlspace Fan
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PCV1 Powered Crawlspace Vent

Powered Crawlspace Vent (Model PCV1) creates a powered ventilation system for crawlspaces that can be utilized in both old and new construction. The PCV1 is designed to be mounted behind any new or existing crawlspace vent. Its operation is controlled with a temperature switch /humidistat control which activates the motor at or above 50ºF and is user adjustable for the varying levels of relative humidity in your crawlspace.

By incorporating the PCV1 into your homes crawlspace ventilation system, you can help stop mold growth, mildew, rot, pest /insect infestation and decrease high humidity levels while increasing the overall airflow within your foundation.

Installation Instructions

Quiet 110 CFM Ball Bearing Motor
Dries Crawlspace Gradually
Humidity Sensor For Worry Free Operation
Thermostat Shuts Fan Off At Low Temperatures
U.L. Approved Means Assured Safety
Can Help Stop Mold Growth
Free Shipping

Lower 48 States Only

To aid natural crawlspace ventilation, mechanical ventilation should exchange the crawlspace air at least four times an hour or every 15 minutes. To determine this, multiply the square footage of the crawlspace by the height to calculate the cubit feet of the crawlspace and then divide by 15 to determine the CFM needed.

Home with 1500 square foot crawlspace 2 feet tall.

(1500)(2) = 3000 cubic feet
3000/15 = 200 cfm required
Each Fan provides 110 CFM so one should use two(2) PCV1s.

Upgrades Your Present Foundation Vent
Easy Installation In A Variety Of Constructions
Mounts Behind Foundation Vent For Invisible Operation
Quick And Simple Solution For Underventilated Crawlspaces
Super Tough Polypropylene Construction
One Year Limited Warranty
Size (in) 9 x 19 x 3
Cubic Feet
Louver Ventilates
Opening Size (in) 8 x 16

Happy People Comments
Great job guys, products that work great at a great price.
Mark B. from VA.