Fantech DBF 4XLT Dryer Exhaust Fan 173 CFM Single Phase

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By

Fantech

In stock
Model

DBF 4XLT

ID

36560

Was $565.00 Your Low Price Special Price $397.00
Product Features
  • Smart Automatic Activation
  • Boosts Extra Air on Demand
  • UV-resistant Thermoplastic Housing
  • Compact, Straight-through Design

OVERVIEW

The DBF 4XLT is a high-performance dryer exhaust fan designed to help your dryer operate more efficiently by venting warm, moist air out of the duct system. It’s especially useful for long or complex duct runs that can restrict airflow. The fan is recommended when the duct length exceeds 40 feet with no bends, 35 feet with one bend, or 30 feet with two bends, and it can maintain strong exhaust performance in ducts up to 130 feet long.

The DBF 4XLT includes a built-in pressure switch that automatically turns the fan on when the dryer starts. It also features a wall-mounted indicator panel with a 50-foot cable that lets you easily monitor the fan’s operation. If an issue occurs, the LED light alerts you to the problem. For convenience, the fan comes with a mounting clamp for quick installation and a prewired 5-foot power cord with a plug for connection to a standard 120V outlet.

Key Features

  • Airtight galvanized steel housing: Built for strength and corrosion resistance to ensure long-lasting performance and minimal air leakage.
  • Direct-drive external rotor motor: Equipped with sealed ball bearings for reliable, continuous operation and reduced maintenance.
  • Sealed ball bearings: Permanently lubricated for smooth, maintenance-free operation and extended motor life.
  • Backward-curved impeller: Self-cleaning design that maintains efficiency and reduces buildup over time.
  • Thermal overload protection: Automatically resets after cooling to protect the motor from overheating.
  • Pre-wired power cord: Includes a 5.5-foot 120V AC cord for easy and convenient installation.
  • High temperature rating: Designed to handle exhaust air up to 140 °F (60 °C) for dependable performance in demanding applications.

Warranty Information

The Fantech Inline Duct Fans come with a 5-year limited warranty against defects in materials and workmanship. Fantech will repair or replace defective parts or products after verifying a valid claim.

Warranty Conditions
  • Proof of purchase is required for all warranty claims.
  • Customers must obtain a Return Material Authorization (RMA) before returning any product.
  • Returned items must be shipped prepaid and properly labeled with the RMA number.
Exclusions
  • Improper installation, wiring, or unauthorized repairs void the warranty.
  • Damage from misuse, abuse, or external factors such as accidents or weather is not covered.
  • Products with removed or altered serial labels are not eligible for warranty service.
Refer to the manufacturer's manual for full warranty details.

Durable Construction & Smart Design

Fantech’s DBF Series dryer exhaust fans are designed to handle long or hard-to-vent dryer duct runs. The fan housing is built from a durable, UV-resistant thermoplastic resin blend (ABS-PC) with vibration-welded seams that create an airtight, leak-free structure. This design helps prevent cracking and wear, even in humid laundry areas. Inside, the DBF fan features a backward-inclined centrifugal impeller that lets lint and moisture pass easily, helping to maintain steady airflow and reduce buildup. The motor is a direct-drive external rotor type with sealed, permanently lubricated ball bearings for quiet, maintenance-free operation. It also includes automatic thermal overload protection to prevent overheating. With its sturdy plastic housing, sealed motor, and smart design, the DBF Series provides dependable, low-maintenance performance for dryers with extended or complex vent systems.


Suitable Applications for Fantech DBF Dryer Exhaust Fans

  • Homes with long dryer vents: Ideal for ducts with multiple bends or extended runs to maintain strong airflow.
  • Interior laundry rooms: Perfect for dryers located far from exterior walls to ensure efficient ventilation.
  • Multifamily or apartment units: Supports shared or extended exhaust systems for consistent drying performance.
  • Home renovations or retrofits: Great for older homes where vent paths can’t be shortened.
  • Garages, basements, or utility rooms: Reliable solution for long or obstructed duct routes.
  • High-capacity dryers: Handles higher airflow needs in heavy-use or semi-commercial setups.
  • Code-compliant use: Meets requirements where booster fans are needed for long or complex ducts.
More Information
Fantech DBF 4XLT Dryer Exhaust Fan 173 CFM Single Phase
FeatureSpec
SKUDBF 4XLT
Weight (in lbs)10
Brand/ManufacturerFantech
UPC650737125400
Drive TypeDirect
Maximum CFM173
Motor RPM2559
Watt71.9
Electrical120/240 V, 1 Phase
Amperage Requirement0.73
CertificationHVI, ETL
Duct Diameter4"
Height11"
Width13"
Depth13"
Warranty5 year warranty
Resources
Safety InformationPROPOSITION 65 WARNING
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Customer Questions
How many bends can the fan handle in my dryer duct?
The DBF fan can handle up to about six bends in your dryer duct, depending on how long the duct is. Beyond that, airflow may start to slow down.
Do I need to turn the dryer fan on or off myself?
No need! The DBF automatically turns on when your dryer starts and shuts off a short time after the dryer stops.
Can lint build up inside the DBF fan?
Not easily. The fan’s design lets lint and moisture pass through smoothly, helping prevent buildup and keeping the airflow strong.
Is the dryer fan energy efficient?
Yes. It only runs when your dryer is on, using very little electricity while helping your dryer work faster and more efficiently.
Will the DBF make my dryer louder?
Not really. The fan runs quietly, and most of the sound stays inside the duct, so you’ll hardly notice it running. If you have any further questions, please don't hesitate to contact us. Thanks.
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