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Sensor Type
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Booster Fans
Auto-Shut Off
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10" Duct
Brown Finish
110V AC
Ease of Installation
Intermediate (Installs < 60 minutes)
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Increase the Airflow to Your Vents in Rooms that are Too Hot or Too Cold
Tjernlund CBB Cyclone Booster Fan Plus with Built-in Thermostat, Brown
Tjernlund CBB Cyclone Booster Fan Plus with Built-in Thermostat, Brown
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Tjernlund CBB Cyclone Booster Fan Plus with Built-in Thermostat, Brown
Item# 32532BR
Price: Normally $138.00 
Hot Deal $76.89
Free shipping on orders over $175 - See Details


  • Turns on and off automatically with temperature sensor thermostat
  • Saves money on heating and cooling bills all year
  • Fits in both 3 x 10 inch and 4 x 10 inch ducts
  • Just set it and forget it, no maintenance or manual operation is needed

Essential Info

Is there a room in your house that is usually cooler or hotter than the others? If so it is probably due to bad airflow from your vents. Airflow in central air homes weakens the further it travels through the ducts. The Tjernlund Cyclone Booster Fan Plus helps solves this problem. The Booster Fan boosts the idle air from vents outward into the rooms where it is needed most, making every room in your home equally comfortable. The innovative design features a built-in thermostat that senses heated or cooled air and turns the fan on and off automatically, lowering your heating and cooling costs year round. The Cyclone Booster Fan Plus helps SAVE ENERGY and MONEY, just set it and forget it.

The Tjernlund Cyclone Booster Fan Plus is also available in White, sold separately.

  • Increases and maximizes ventilation in any room in your home
  • Fits in both 3x10 or 4x10 inch ducts
  • Works for all seasons whether you're heating or cooling your house
  • Built-in thermostat senses hot or cold air
  • Angled fan blades pushes the air into the center of the room
  • Turns on and off automatically
  • Whisper-quiet operation

  • Manuals/Software

    What's Included

  • 1x - Cyclone Booster Fan Plus, Brown
  • 1x - Attached Power Cord
  • 1x - User’s Manual

  • More Info


    Manufacturer Product NoCBB
    Vent Size Compatibility3x10 or 4x10 Inch
    Power Rating12V DC, 500mA
    Cord LengthSix Feet
    Dimensions5.19" D x 3.13" H x 11.13" W
    Manufacturer WarrantyOne Year Limited

    Important notes:
    Only defective exchanges for identical item within 30 days of purchase. No other returns allowed on this item. For defective returns after 30 days, please contact the manufacturer.
    Manufacturer contact information: Tjernlund Products Inc, Tel: (800) 255-4208 Ext


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    Front View  Side View     


    2 Ratings
    5 star: 0%  (0)
    4 star: 0%  (0)
    3 star: 0%  (0)
    2 star: 0%  (0)
    1 star: 100%  (2)
    Average Customer Rating
    (2 customer ratings)
    Share your thoughts with other customers
    MELANY -- mankato, MN   7/1/2013
    Poor product. Thermal switch does not do what it is supposed to. Does not seem to work at all. Communication with Smarthome was very poor and they could not even get me a tracking number. Overall first experience is "I will never buy from this company again, nor any product from Tjernlund" Very poor experience with both.
    RICHARD -- franklin grove, IL   6/11/2013
    This fan is of very poor quality. The one that I received will not even start it's rotation. I am at a loss as what to do with it. Guess I am out a bunch of money!!!

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