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About Sound Levels
Measured in decibels (dB), volume ratings indicate how much noise equipment makes. Some common volume levels include a whisper @ 20 dB, a refrigerator @ 40 dB, a conversation @ 60 dB, and a light machine shop @ 90 dB. OSHA recommends hearing protection for exposure to 80 dB and greater.
Heater and Air Conditioner Duct Booster Fans
Insert these fans directly into your ductwork. They give small heaters and air conditioners a boost to circulate air through ductwork. The crimped end construction makes inserting the fans easy.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.
For technical drawings and 3-D models, click on a part number.
| For Duct Dia. | No. of Speeds | Airflow @ Static Pressure | Volume | Motor Speed, rpm | Overall Dp. | Max. Temp., °F | Housing Material | Blade Material | Each | |
120V AC, Single Phase—Plug | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 4" | 1 | 65 cfm @ 0 in. of H₂O | 47 dBA | 3,200 | 6" | 140° | Galvanized Steel | Polycarbonate Plastic | 0000000 | 000000 |
| 12" | 1 | 650 cfm @ 0 in. of H₂O | 50 dBA | 1,300 | 8" | 140° | Galvanized Steel | Polycarbonate Plastic | 0000000 | 000000 |
120V AC, Single Phase—Hardwire | ||||||||||
| 6" | 1 | 240 cfm @ 0 in. of H₂O | Not Rated | 1,600 | 7 1/4" | 255° | Galvanized Steel | Aluminum | 0000000 | 00000 |
| 8" | 1 | 420 cfm @ 0 in. of H₂O | Not Rated | 1,600 | 7 1/4" | 255° | Galvanized Steel | Aluminum | 0000000 | 00000 |
| 10" | 1 | 650 cfm @ 0 in. of H₂O | Not Rated | 1,600 | 8" | 212° | Galvanized Steel | Aluminum | 0000000 | 000000 |
| 14" | 1 | 1,350 cfm @ 0 in. of H₂O | Not Rated | 1,600 | 9 1/8" | 212° | Galvanized Steel | Aluminum | 0000000 | 000000 |