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Tjernlund Duct Booster Fan, 10in., 475 CFM, Model# EF-10

Item# 517216
Top Seller
Tjernlund Duct Booster Fan, 10in., 475 CFM, Model# EF-10

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Tjernlund Duct Booster Fan, 10in., 475 CFM, Model# EF-10

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$229.99

  • Shipping: 

    Factory shipped

  • Store Pickup: 

    Not available - online only
  • Easily installed in metal or flex ducting
  • Suitable for air temperatures up to 150°
  • Permanently lubricated shaded pole
  • 24-g. galvanized steel housing, aluminum prop fan

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  • Description

  • Key Specs

  • Reviews

  • Q & A

  • Warranty

  • Compare

Product Summary

The Tjernlund Dual Outlet Dehumidistat is a reliable and efficient solution designed to automatically control the Tjernlund CS1 crawl space exhaust fan (sold separately). Measuring 3 inches in height and 6 inches in width, this dehumidistat ensures optimal moisture management by activating the exhaust fan when humidity levels exceed set thresholds, maintaining a dry and healthy environment. Built with precision engineering in the U.S.A., it features dual outlets for versatile connectivity, making it an indispensable tool for preventing mold, mildew, and structural damage in crawl spaces. Easy to install and operate, the Tjernlund Dual Outlet Dehumidistat offers peace of mind and long-lasting performance for homeowners and professionals seeking effective humidity control.

What's Included

    (1) Fan

Downloads

Product Manual
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Features + Benefits

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

Key Specs

AttributeSpecification

item#

517216

Brand

Tjernlund

Manufacturer's Warranty

1 year limited warranty

Ship Weight

11.0 LB

Air Delivery

475 cfm
AttributeSpecification

Outdoor Rated

No

Horsepower

0.01 HP

Volts

120

Fan Diameter

10 in

Speeds (qty.)

1

Reviews

Questions & Answers

41 Reviews This action will navigate to reviews.

Questions

1–7 of 7 Questions  
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  1. Is the motor safe for moving dust or will it damage the motor?

    1 answer

    1. Model # EF-10 is not suitable for operation in unfiltered, dusty ducts. Please ensure that an upstream filter is installed and maintained; heavy dust requires seasonal removal and cleaning to prevent motor damage. Refer to the manual for maintenance details.

      Helpful?

  2. What is the overall length of this booster fan?

    1 answer

    1. The fan is 15-3/4" total length.

      Helpful?

  3. to connect this fan to my residential A/C system to run at the same time the system is ON, and shut off when the system shuts OFF are any accessories necessary?

    1 answer

    1. Additional accessories are not needed to have this cycle with your heat or a/c.

      Helpful?

  4. Can I get a 9 inch fan?

    9 inch duct splits off to 8 and 7 in ducts.
    Need a 9 inch fan before the split.
    Does anyone make a 8 inch duct fan?
    Can't find one anywhere.

    1 answer

    1. At this time Northern Tool does not carry a 9" duct fan.

      Helpful?

  5. can this fan run 24/7?

    1 answer

    1. The Tjernlund Duct Booster Fan can we wired to run constantly. It may shorten the lifespan of the fan but would not void the warranty.

      Helpful?

  6. Can this fan be controlled by a thermostat in the room I'm drawing the air from?

    Can this fan be controlled by a thermostat in the room I'm drawing the air from? ......This Duct Booster Fan would be placed in the crawl space over my family room and used to draw hot air (warmed by the ProCom PCD24TD Vent Free Log Set purchased from Northern in Jan-2012) through flex duct into the upstairs of my end-stairwell colonial style home. I would like to install it with a thermostat mounted near the air intake in the ceiling.

    1 answer

    1. This Tjernlund Duct Booster Fan can be used as a utility fan and controlled by a thermostat. The thermostat should be in the area you are trying to control.

      Helpful?

  7. can these types of duct booster fans be used for ventalation of a room to the outdoors?

    can these types of duct booster fans be used for ventalation of a room to the outdoors? similiar to a small whole house fan? I'm looking to take a small area and vent outdoors up an abandoned chiminey, will not be much static pressure.

    1 answer

    1. This Duct Booster Fan is designed for duct work, but could be used as a ventilation fan. Insulation contrary to manufacturer's installation instructions may void warranty.

      Helpful?

Warranty

Manufacturer's Warranty

1 year limited warranty

Extend Your Warranty Coverage with a Northern Protection Plan (NPP)

Replacement Plan — 1 Year

A Northern Protection Plan is available after adding the product to your shopping cart.

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Tjernlund Duct Booster Fan, 10in., 475 CFM, Model# EF-10
4.5 out of 5 stars. 41 reviews

Tjernlund Duct Booster Fan, 10in., 475 CFM, Model# EF-10

Item # 517216

$229.99