Humidity Controlled Exhaust Fan For Crawl Space

So a 20 degree drop means a 40 increase in humidity.

Humidity controlled exhaust fan for crawl space. Usually set at 50 humidity since mold will not grow when the humidity is less than 50. Continuously operated mechanical exhaust ventilation at a rate equal to 1 cubic foot per minute 0 47 l s for each 50 square feet 4 7m2 of crawlspace floor area including an air pathway to the common area such as a duct or transfer grille and perimeter walls insulated so a 2000 square foot crawl space would need a 40 cfm exhaust fan. View more information about this humidistat by clicking here. You must lower the humidity to control the dew point and keep the air ducts in the crawl space from condensating.

For that reason the tjernlund is simply convenient. The tjernlund underaire series v1 crawl space ventilator is designed to circulate fresh outdoor air underneath homes and porches. Typically however you can tell just by entering the space if the humidity feels high if the air feels wet that s your sign. At that point the humidity in your crawl space increases by 2 for each degree the air cools.

The controller turns a fan on when humidity rises above a pre set limit. Excessive humidity levels in crawl spaces is the leading cause of premature rotting of support columns joists floors and beam supports. Ac infinity airtitan t8 crawlspace basement ventilator fan with temperature and dehumidistat controller ip 44 rated exhaust a fan system designed to provide ventilation and moisture control for crawl spaces and basements. Really cold air ducts mixed with high humidity and high temperatures causes an explosion of moisture in the crawl space.

Unfortunately just sealing the vents does not stop this moisture because of dew point. You can measure relative humidity using a hygrometer analog or digital. If you ve got a smallish crawl space to control humidity in this is an excellent choice and better than anything else you ll find on the market today. The second is a crawlspace humidistat or humidity controller.

On a temperate day with a high of 75 degrees and 60 humidity the crawl space will stay around 55 degrees. Ac infinity airtitan t3 ventilation fan 6 with temperature humidity controller for crawl space basement garage attic hydroponics grow tents 4 3 out of 5 stars 68 69 99 69 99 get it as soon as fri jul 24. Humidity can promote fungus growth and increased termite activity.