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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.
Direct-Drive Downdraft Roof-Mount Exhaust Fans
 |  |
Style 1 | Style 2 |
 | |
Style 3 |
Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. More economical than upblast roof-mount exhaust fans, these draw stagnant and humid air out through your roof and then direct it back toward the roof. All fans have a disconnect switch to turn off the power for servicing.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.
Brushless Motor—Fans with a brushless motor are more efficient than fans with a standard motor. They operate at a wide range of speeds for precise speed control and greater energy savings. They’re also quieter and have a longer lifespan because of their advanced electronic controls.
Exhaust Fans | Mounting Bases | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | ||||||||||||||||||
Style | Blade Dia. | Airflow @ SP | Volume (Sound) @ Distance | Motor Speed, rpm | Power, hp | Dia. | Ht. | Base Wd. | Wt., lb. | Ambient Temp. | Housing Material | Certification | Each | Each | ||||
Open Dripproof (ODP) Motor Enclosure | ||||||||||||||||||
120V AC, Single Phase—Hardwire | ||||||||||||||||||
| 1 | 9" | 100 ft³/min @ 1/2 in. H₂O 400 ft³/min @ 0 in. H₂O | 50 dBA @ 5 ft. | 1,250 | 1/32 | 20 3/4" | 14 1/2" | 19" | 40 | 120° F | Aluminum | AMCA Certified, ETL Listed | 2011K21 | 0000000 | 2230K11 | 0000000 | ||
| 1 | 11" | 600 ft³/min @ 1/2 in. H₂O 800 ft³/min @ 0 in. H₂O | 57 dBA @ 5 ft. | 1,625 | 3/16 | 23 3/4" | 16 1/4" | 19" | 37 | Not Rated | Aluminum | AMCA Certified, ETL Listed | 2011K54 | 000000 | 2230K11 | 000000 | ||
| 1 | 12" | 950 ft³/min @ 1/2 in. H₂O 1,250 ft³/min @ 0 in. H₂O | 62 dBA @ 5 ft. | 1,625 | 1/4 | 26 1/4" | 19 1/8" | 21" | 53 | Not Rated | Aluminum | AMCA Certified, ETL Listed | 2011K65 | 000000 | 2230K13 | 000000 | ||
| 1 | 14" | 1,800 ft³/min @ 1/2 in. H₂O 2,100 ft³/min @ 0 in. H₂O | 66 dBA @ 5 ft. | 1,625 | 1/2 | 29 3/4" | 21 3/4" | 21" | 56 | Not Rated | Aluminum | AMCA Certified, ETL Listed | 2011K57 | 000000 | 2230K13 | 000000 | ||
| 1 | 16" | 2,600 ft³/min @ 1/2 in. H₂O 3,100 ft³/min @ 0 in. H₂O | 70 dBA @ 5 ft. | 1,450 | 3/4 | 33 1/4" | 23 3/8" | 24" | 77 | 120° F | Aluminum | AMCA Certified, ETL Listed | 2011K22 | 000000 | 2230K34 | 000000 | ||
208/230V AC Three Phase—Hardwire | ||||||||||||||||||
| 2 | 19" | 4,500 ft³/min @ 1/2 in. H₂O 5,000 ft³/min @ 0 in. H₂O | 75 dBA @ 5 ft. | 1,300 | 2 | 38 15/16" | 32 3/4" | 28" | 189 | 120° F | Aluminum | AMCA Certified, ETL Listed | 2011K23 | 00000000 | 2230K35 | 000000 | ||
| 2 | 21" | 6,200 ft³/min @ 1/2 in. H₂O 6,700 ft³/min @ 0 in. H₂O | 82 dBA @ 5 ft. | 1,400 | 5 | 38 15/16" | 32 1/4" | 28" | 201 | 120° F | Aluminum | AMCA Certified, ETL Listed | 2011K24 | 00000000 | 2230K35 | 000000 | ||
| 2 | 24" | 8,100 ft³/min @ 1/2 in. H₂O 9,000 ft³/min @ 0 in. H₂O | 73 dBA @ 5 ft. | 925 | 3 | 43 7/16" | 37 1/4" | 33" | 288 | 120° F | Aluminum | AMCA Certified, ETL Listed | 2011K25 | 00000000 | 2230K39 | 000000 | ||
| 2 | 30" | 10,400 ft³/min @ 1/2 in. H₂O 11,500 ft³/min @ 0 in. H₂O | 69 dBA @ 5 ft. | 700 | 5 | 52 13/16" | 44" | 40" | 467 | 120° F | Aluminum | AMCA Certified, ETL Listed | 2011K26 | 00000000 | 2230K94 | 000000 | ||
| 2 | 36" | 11,000 ft³/min @ 1/2 in. H₂O 13,500 ft³/min @ 0 in. H₂O | 64 dBA @ 5 ft. | 450 | 5 | 63 5/16" | 49 1/2" | 44" | 532 | 120° F | Aluminum | AMCA Certified, ETL Listed | 2011K27 | 00000000 | 2230K57 | 000000 | ||
Totally Enclosed Motor Enclosure | ||||||||||||||||||
120V AC, Single Phase—Hardwire | ||||||||||||||||||
| 3 | 10" | 60 ft³/min @ 1/2 in. H₂O 500 ft³/min @ 0 in. H₂O | Not Rated | 1,500 | 1/30 | 18 5/16" | 11 1/4" | 19" | 21 | Not Rated | Aluminum | AMCA Certified, ETL Listed | 2050K21 | 000000 | 2230K11 | 000000 | ||
| 3 | 12" | 430 ft³/min @ 1/2 in. H₂O 830 ft³/min @ 0 in. H₂O | Not Rated | 1,500 | 1/10 | 20 5/16" | 11 3/4" | 19" | 30 | Not Rated | Aluminum | AMCA Certified, ETL Listed | 2050K22 | 000000 | 2230K11 | 000000 | ||
| 3 | 14" | 520 ft³/min @ 1/2 in. H₂O 1,100 ft³/min @ 0 in. H₂O | Not Rated | 1,100 | 1/6 | 27 5/16" | 14 5/8" | 21" | 39 | Not Rated | Aluminum | AMCA Certified, ETL Listed | 2050K13 | 000000 | 2230K13 | 000000 | ||
| 3 | 18" | 1,200 ft³/min @ 1/2 in. H₂O 2,400 ft³/min @ 0 in. H₂O | Not Rated | 1,100 | 1/3 | 33 9/16" | 16 3/8" | 26" | 60 | Not Rated | Aluminum | AMCA Certified, ETL Listed | 2050K16 | 000000 | 2230K16 | 000000 | ||
Totally Enclosed Motor Enclosure—Brushless Motor | ||||||||||||||||||
120V AC, Single Phase—Hardwire | ||||||||||||||||||
| 1 | 12" | 1,000 ft³/min @ 1/2 in. H₂O 1,300 ft³/min @ 0 in. H₂O | 66 dBA @ 5 ft. | 1,575 | 1/3 | 26 1/4" | 19 1/8" | 21" | 54 | 120° F | Aluminum | AMCA Certified, ETL Listed | 2050K33 | 000000 | 2230K31 | 000000 | ||
| 1 | 14" | 1,900 ft³/min @ 1/2 in. H₂O 2,300 ft³/min @ 0 in. H₂O | 68 dBA @ 5 ft. | 1,525 | 1/2 | 29 3/4" | 21 3/4" | 21" | 61 | 120° F | Aluminum | AMCA Certified, ETL Listed | 2050K34 | 00000000 | 2230K31 | 000000 | ||
| 1 | 16" | 2,850 ft³/min @ 1/2 in. H₂O 3,300 ft³/min @ 0 in. H₂O | 71 dBA @ 5 ft. | 1,525 | 1 | 33 1/4" | 23 3/8" | 24" | 74 | 120° F | Aluminum | AMCA Certified, ETL Listed | 2050K35 | 00000000 | 2230K34 | 000000 | ||
Belt-Drive Downdraft Roof-Mount Exhaust Fans
120V AC/208 to 230V AC, Single Phase (Hardwire)—Open Dripproof (ODP) Motor Enclosure
 |
Exhaust Fans | Mounting Bases | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | |||||||||||||||||
Blade Dia. | Airflow @ SP | Volume (Sound) @ Distance | Drive Type | Motor Speed, rpm | No. of Speeds | Power, hp | Dia. | Ht. | Base Wd. | Housing Material | Blade Material | Features | Each | Each | |||
| 16" | 2,800 ft³/min @ 1/2 in. H₂O 3,200 ft³/min @ 0 in. H₂O | 70 dBA @ 5 ft. | Belt | 1,145 | 1 | 3/4 | 33 11/16" | 29 1/4" | 26" | Aluminum | Aluminum | Bird Screen | 2207K31 | 000000000 | 2230K34 | 0000000 | |
| 20" | 4,900 ft³/min @ 1/2 in. H₂O 5,400 ft³/min @ 0 in. H₂O | 74 dBA @ 5 ft. | Belt | 1,080 | 1 | 1 1/2 | 38 1/4" | 31 3/4" | 30" | Aluminum | Aluminum | Bird Screen | 2207K32 | 00000000 | 2230K36 | 000000 | |
208 to 230V AC/460V AC, Three Phase (Hardwire)—Open Dripproof (ODP) Motor Enclosure
|
Exhaust Fans | Mounting Bases | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | |||||||||||||||||
Blade Dia. | Airflow @ SP | Volume (Sound) @ Distance | Drive Type | Motor Speed, rpm | No. of Speeds | Power, hp | Dia. | Ht. | Base Wd. | Housing Material | Blade Material | Features | Each | Each | |||
| 24" | 6,900 ft³/min @ 1/2 in. H₂O 7,750 ft³/min @ 0 in. H₂O | 73 dBA @ 5 ft. | Belt | 875 | 1 | 2 | 44 1/4" | 39 11/16" | 33" | Aluminum | Aluminum | Bird Screen | 2207K33 | 000000000 | 2230K39 | 0000000 | |
