About Exhaust Fans
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Wind-Driven Roof-Mount Exhaust Fans
Designed to spin freely with the slightest breeze, these fans create a vacuum that draws air out from buildings and ventilation systems—no electricity required. They are also known as turbine ventilators. Mount fans on your roof away from wind obstructions.
Optional mounting bases are sold separately.
All bases have a square bottom, round top, and flashing to simplify installation.
To Order: For slope bases, please specify pitch: 1/12-11/12 in increments of 1/12. To determine pitch, use an angle indicator or divide rise by run (see illustration). For instance, if your roof rises 5" in 12" of horizontal space, your pitch is 5/12.
Hazardous Location Chemical-Resistant Blowers
These blowers have an explosion-proof motor that is UL listed and CSA certified for Class I, Divisions 1 and 2, Group D; and Class II, Divisions 1 and 2, Groups F and G hazardous locations. For resistance to chemicals as well as corrosion, they have a plastic housing. They install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting. All blowers have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.
Fiberglass housing withstands organic chemicals, such as ammonia, antifreeze, and mineral oils.
For technical drawings and 3-D models, click on a part number.
Blowers | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Mounting | Replacement Wheels | |||||||||||||
| Airflow @ Static Pressure | Motor Speed, rpm | Power, hp | Outlet Dia. | Inlet Dia. | Wheel Dia. | Ht. | Wd. | Dp. | Housing Material | Fasteners Included | Hole Dia. | Each | Each | ||
120/230V AC, Single Phase—Hardwire | |||||||||||||||
| 810 cfm @ 1 in. of H₂O 960 cfm @ 1/2 in. of H₂O | 1,725 | 1/3 | 8" | 8" | 7" | 16 3/4" | 15 1/8" | 21 1/2" | Fiberglass | No | 3/8" | 0000000 | 000000000 | 0000000 | 0000000 |
Chemical-Resistant Blowers
For resistance to chemicals as well as corrosion, these blowers have a plastic housing. They install in ductwork similar to duct fans, but are for use where high static pressures are present. Use them for equipment cooling, material conveying, drying, ventilating, and exhausting. All blowers have a totally enclosed motor enclosure, which can be used in dirty, dusty, and damp environments.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.
Fiberglass housing withstands organic chemicals, such as ammonia, antifreeze, and mineral oils.
For technical drawings and 3-D models, click on a part number.
Blowers | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Mounting | Replacement Wheels | ||||||||||||||
| Airflow @ Static Pressure | Motor Speed, rpm | Power, hp | Outlet Dia. | Inlet Dia. | Wheel Dia. | Ht. | Wd. | Dp. | Wt., lbs. | Housing Material | Fasteners Included | Hole Dia. | Each | Each | ||
120/230V AC, Single Phase—Hardwire | ||||||||||||||||
| 810 cfm @ 1 in. of H₂O 960 cfm @ 1/2 in. of H₂O | 1,725 | 1/3 | 8" | 8" | 7" | 16 3/4" | 15 1/8" | 18 1/2" | 53 | Fiberglass | No | 3/8" | 0000000 | 000000000 | 0000000 | 0000000 |