Foundation Vent Fan With Humidistat

Durablow mfb m2d air out stainless steel 304 crawl space foundation dual fans ventilator built in dehumidistat freeze protection thermostat radon mitigation 4 5 out of 5 stars 371 crawlspace humidistat controller system gauge and monitor humidity and control ventilation fans in home basements crawl spaces and garages.

Foundation vent fan with humidistat. Powered vents are installed on one side of the foundation with open non powered vents on the other side. It prevent excessive humidity and remove cooking odors tobacco smoke in rooms up to 105 sq ft. 110 cfm rating of this vent fan is sufficient for most bathrooms. It is wired for automatic operation when the temperature exceeds 50of.

This tjernland deluxe two fan crawl space ventilator is sturdily built from heavy gauge galvanized steel and is equipped with sealed bearing fan motors rated for continuous duty. A small fan is encased in the housing of the vent and runs continuously at a low speed when the humidity level exceeds the setting on the humidistat. Can a foundation vent fan control humidity. An optional de humidistat activates the fan when humidity exceeds the owner determined setting 20 80 in conjunction with the built in temperature control.

The fan creates negative pressure in the foundation to pull air through the foundation. Now if you live in a climate where you have a low outside humidity all the time and you have a fan pulling that outside air into a crawl space that s high in humidity then that is true. Climates like parts of colorado where relative humidity is extremely low will dry a crawl space from the outside. The eliminator attaches to virtually any standard foundation vent.