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  • Tjernlund EF-12 Duct Booster Fan, 800 CFM, 12"
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Tjernlund EF-12 Duct Booster Fan, 800 CFM, 12"


List Price: $168.00
Price: $128.35 & FREE Shipping. Details
You Save: $39.65 (24%)
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Specifications for this item
Brand Name Tjernlund
Part Number EF-12
UPC 080956424006
EAN 0080956424006
Item Weight 9 pounds
Number of Items 1
UNSPSC Code 25174001

Axial Duct Booster, Housing Material Galvanized Steel, Fits Duct Dia. 12 In., Voltage 120, Max. A... Read full product description



Product Features

  • Easily installed in metal or flex ducting
  • Suitable for air temperatures up to 150deg
  • Permanently lubricated shaded pole
  • 24-g. galvanized steel housing, aluminum prop fan


Product Details

  • Product Dimensions: 16.5 x 15.6 x 16.5 inches ; 9 pounds
  • Shipping Weight: 11 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B002EBVW96
  • Item model number: EF-12
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (2 customer reviews)
  • Amazon Best Sellers Rank: #51,976 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
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Frequently Bought Together

Tjernlund EF-12 Duct Booster Fan, 800 CFM, 12" + Switch, Duct Pressure
Price for both: $178.34

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Product Description

Axial Duct Booster, Housing Material Galvanized Steel, Fits Duct Dia. 12 In., Voltage 120, Max. Amps 1.25, Max. Wattage 96, Number of Speeds 1, Housing Dia. 12 In., Length 15-1/2 In., CFM @ Duct 800/700/600, CFM @ 0.000-In. SP 875, Max. Inlet Temp. 150 Degrees F, Inlet and Outlet Dia. 12 In., 60 Hz, 1 Phase, Motor HP 1/35, Motor RPM 1500, Motor Enclosure Open Air Over, Speed Control Yes, Mounting Position Horizontal or Vertical, Std. Lengths 25/50/75 ft. In-Line Axial Fan Duct Boosters Designed for powered air intake and exhaust systems, or to boost air flow in hard-to-heat or -cool areas. Galvanized steel housing with built-in duct stop on the inlet and crimped edge on the outlet. 6KXZ5 & 6KXZ6 feature pressure control. Optional speed control 1DGV1 (see page 4496) can be used on 6", 8", and 10" units only.115V, 60 Hz External junction box (6KXZ5 & 6KXZ6 have cord with 3-prong plug).

Customer Reviews

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Most Helpful Customer Reviews

2 of 2 people found the following review helpful By Victor H. Agresti TOP 500 REVIEWER on July 3, 2012
Verified Purchase
Tjernlund Duct Booster Fan Model EF-12

- this fan is well made, using stiff 24-gauge galvanized steel compared to most duct work fittings, which use the thinner 26 or even 28 gauge. An electric connection box is riveted to the outside of unit, with BX (steel-coiled sleeve) cable running to the fan motor. The motor is held in place with two strong steel brackets bolted to the duct.

- sitting on a concrete floor running, it's only 67 decibels at 5 feet, which isn't bad at all. 100% of the sound is the air whooshing though the fan; i.e., there is no mechanical noise. I couldn't see or hear any hint of vibration. Touch the housing while it's running, and there is an almost imperceptible vibration, which means the propeller (fan blade) is almost perfectly balanced.

- permanently lubricated sealed sleeve bearing 110 volt, 1/25 HP, 1.3 amp, 143 watts, motor (made in Mexico).

- can operate in air up to 150 degrees which is more than enough for virtually any heating or venting application. Only the best in-line fans are temperature rated. Most don't even tell you their maximum operating temperature.

- fan housing is 12" in diameter and 15 3/4" long. Although Amazon's specs say it must be hardwired, that's not true. I.e., I wired in a heavy duty 18 gauge 3-wire extension cord to the fan's electrical box, and plugged it into an receptacle designed specifically for the fan. I.e., that receptacle is hot only when the fan should be running.

- keep the spec sheet that comes with the fan because the motor and propeller (fan blade) are replaceable from the factory.

As with any new fan, test it when first received -- to ensure that the propeller is balanced, doesn't hit anything, and turns freely, and the motor is quiet.
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By Amazon Customer on February 23, 2013
Verified Purchase
the Tjernlund duct booster is great and is made really well. A bit noisy but that is just the nature of the beast. It really works get the automatic switch and you are in business. It would have gotten 5 stars if it wasn't for the noise.
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