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About Exhaust Fans
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Choose an exhaust fan based on the size of your space and how often you want to refresh the air.
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.
Base Dia. | Overall Ht. | Airflow @ Wind Speed | Thk. | Max. Temp., ° F | Each | |||
|---|---|---|---|---|---|---|---|---|
Galvanized Steel | ||||||||
| 6" | 14 1/2" | 145 ft³/min @ 4 mph | 0.018" | 150 | 1992K12 | 0000000 | ||
| 8" | 15 1/2" | 255 ft³/min @ 4 mph | 0.018" | 150 | 1992K14 | 000000 | ||
| 10" | 16 3/4" | 425 ft³/min @ 4 mph | 0.018" | 150 | 1992K16 | 000000 | ||
| 12" | 17 1/4" | 630 ft³/min @ 4 mph | 0.024" | 150 | 1992K17 | 000000 | ||
| 14" | 20" | 700 ft³/min @ 4 mph | 0.024" | 150 | 1992K18 | 000000 | ||
| 16" | 22 1/2" | 950 ft³/min @ 4 mph | 0.024" | 150 | 1992K21 | 000000 | ||
| 18" | 24" | 1,200 ft³/min @ 4 mph | 0.024" | 150 | 1992K22 | 000000 | ||
| 20" | 24 1/2" | 1,700 ft³/min @ 4 mph | 0.024" | 150 | 1992K23 | 000000 | ||
| 24" | 29 1/2" | 2,350 ft³/min @ 4 mph | 0.024" | 150 | 1992K24 | 000000 | ||
| 30" | 32" | 2,700 ft³/min @ 4 mph | 0.03" | 150 | 1992K25 | 000000 | ||
| 36" | 38" | 4,000 ft³/min @ 4 mph | 0.03" | 150 | 1992K27 | 000000 | ||
Stainless Steel | ||||||||
| 6" | 14 1/2" | 110 ft³/min @ 4 mph | 0.018" | 150 | 1992K43 | 000000 | ||
| 8" | 15 1/2" | 195 ft³/min @ 4 mph | 0.018" | 150 | 1992K45 | 000000 | ||
| 10" | 16 3/4" | 305 ft³/min @ 4 mph | 0.018" | 150 | 1992K47 | 000000 | ||
| 12" | 17 1/4" | 440 ft³/min @ 4 mph | 0.024" | 150 | 1992K48 | 000000 | ||
| 14" | 20" | 600 ft³/min @ 4 mph | 0.024" | 150 | 1992K49 | 000000 | ||
| 16" | 22 1/2" | 790 ft³/min @ 4 mph | 0.024" | 150 | 1992K52 | 000000 | ||
| 18" | 24" | 1,000 ft³/min @ 4 mph | 0.024" | 150 | 1992K53 | 000000 | ||
| 20" | 24 1/2" | 1,200 ft³/min @ 4 mph | 0.024" | 150 | 1992K54 | 000000 | ||
| 24" | 29 1/2" | 1,700 ft³/min @ 4 mph | 0.024" | 150 | 1992K55 | 000000 | ||
 |  |
Flat Base | Straight Base |
 |  |
Slope Base |
Flat Bases | Straight Bases | Slope Bases | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Outlet Dia. | Base Wd. | Ht. | Flashing Wd. | Material | Each | Each | Each | ||||
| 8" | 10" | 10" | 4" | Galvanized Steel | 2003K91 | 000000 | 2003K51 | 000000 | 2003K31 | 0000000 | |
| 10" | 12" | 10" | 4" | Galvanized Steel | 2003K92 | 00000 | 2003K52 | 00000 | 2003K32 | 000000 | |
| 12" | 14" | 10" | 4" | Galvanized Steel | 2003K93 | 00000 | 2003K53 | 00000 | 2003K33 | 000000 | |
| 14" | 16" | 10" | 4" | Galvanized Steel | 2003K94 | 00000 | 2003K54 | 000000 | 2003K34 | 000000 | |
| 16" | 18" | 10" | 4" | Galvanized Steel | 2003K95 | 000000 | 2003K55 | 000000 | 2003K35 | 000000 | |
| 18" | 22" | 10" | 4" | Galvanized Steel | 2003K96 | 000000 | 2003K56 | 000000 | 2003K36 | 000000 | |
| 20" | 24" | 10" | 4" | Galvanized Steel | 2003K97 | 000000 | 2003K57 | 000000 | 2003K37 | 000000 | |
| 24" | 30" | 12" | 4" | Galvanized Steel | 2003K98 | 000000 | 2003K58 | 000000 | 2003K38 | 000000 | |
