Excessive humidity levels in crawl spaces is the leading cause of premature rotting of support columns, joists, floors and beam supports. Humidity can promote fungus growth and increased termite activity. It can also cause plumbing failures due mto rust & corrosion.

 

 

 

Galvanized Face Plate - may be trimmed if necessary.

Sealed Bearing Motor(s)

Safety thermostat deactivates fan below 40F degrees to advoid freeze-ups.

Models V1 & V1D include adjustable dehumidistat and have 6' grounded power cord.

 

Easy to Install - Ventilators are installed inside crawl space behind existing ventilation opening. Screws and masonry wall anchors are included.

 

 

 

 

UNDERAIRE® MODEL SELECTION GUIDE

 

MODEL V1

One fan and small faceplate for ventilation openings through BRICK foundations. Includes 40F degree safety thermostat. Requires switch or dehumidistat to activate. Multiple ventilators may be controlled by a single switch or dehumidistat (Model DH10). 115VAC / 0.30 Amps / 110 CFM 14 3/8"W X 6 7/8"H X 2"D

 

One fan and large faceplate for ventilation opening through BLOCK foundations.

Includes 40F degree safety thermostat, dehumidistat (Model DH10), and pre-wired 6' power cord.

115VAC / 0.30 Amps / 110 CFM

18"W X 9"H X 2"D

 

MODEL V2D

Two fans and large faceplate for ventilation openings through BLOCK foundations. Includes 40F degree safety thermostat, dehumidistat (Model DH10), and pre-wired 6' power cord.

2 @ 115V / 0.60 Amps / 220 CFM

18"W X 9"H X 2"D

 

MODEL DH10 HUMIDISTAT

Operation - Manual on/off or 20% to 80% Relative Humidity.