---
product_id: 4309393
title: "Fantech DBF 110 Dryer Booster Fan 4\" Duct 167 CFM"
brand: "fantech"
price: "R12237"
currency: ZAR
in_stock: true
reviews_count: 9
category: "Fantech"
url: https://www.desertcart.co.za/products/4309393-fantech-dbf-110-dryer-booster-fan-4-duct-167-cfm
store_origin: ZA
region: South Africa
---

# 80W energy efficient 167 CFM airflow power Ultra-quiet 30 dB noise Fantech DBF 110 Dryer Booster Fan 4" Duct 167 CFM

**Brand:** fantech
**Price:** R12237
**Availability:** ✅ In Stock

## Summary

> 💨 Elevate your airflow game—because your dryer deserves a power boost!

## Quick Answers

- **What is this?** Fantech DBF 110 Dryer Booster Fan 4" Duct 167 CFM by fantech
- **How much does it cost?** R12237 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/4309393-fantech-dbf-110-dryer-booster-fan-4-duct-167-cfm)

## Best For

- fantech enthusiasts

## Why This Product

- Trusted fantech brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Sleek Design:** Fits easily into tight spaces with a 4-inch duct size and lightweight 8-pound frame.
- • **Energy-Savvy Power Use:** Runs on only 80 watts, balancing powerful airflow with low electricity consumption.
- • **Whisper-Quiet Performance:** Operates at just 30 dB—quiet enough to keep your home peaceful and productive.
- • **Boost Your Dryer’s Efficiency:** 167 CFM airflow ensures faster, more effective drying even with long duct runs.
- • **Smart Pressure-Sensing Activation:** Automatically powers on/off based on duct pressure for seamless, energy-saving operation.

## Overview

The Fantech DBF 110 Dryer Booster Fan delivers a robust 167 CFM airflow through a 4-inch duct, optimizing dryer performance for extended vent runs. Featuring a smart pressure-sensing switch, it activates only when needed, saving energy while maintaining quiet operation at 30 dB. Compact and efficient, this 80-watt fan is the perfect upgrade for millennial professionals seeking hassle-free, high-performance home ventilation.

## Description

DBF 110 is a duct fan designed for boosting air on demand in applications such as extended ductwork, crawlspace ventilation, and dryer exhaust. The product is equipped with a pressure-sensing switch that activates the fan once positive pressure is sensed in the duct line. The switch shuts the fan off when the pressure differential falls below the activation level.

Review: Worth every penny! Dry times are now down to 40-60 minutes vs. nearly 2-3hrs on large loads! - UPDATED 8/6/15: Still LOVE this unit, and it has continued to work flawlessly! I had marked my phone's calendar for the one year mark since installation as a reminder to crawl under the house (where I installed it) take it apart and clean it, clean the exhaust vent as well (as best as I could) and put it back together as general maintenance. I'm glad I did, as the unit had some build up lint for sure inside of it. Not that you would know it, as it continued to run perfectly, but could've perhaps reduced the life of the unit had it gone too long, I don't know. Anyways, quick and easy to uninstall, clean, and reinstall, and I reset my calendar for another year and I should be good to go. Definitely recommend this to anyone with poor drying due to long vent runs. ----------------------------------------------------------------------------------------------------------- I typically don't write reviews, but I wanted to share how incredibly well this unit works for us and for the price is worth every penny! A quick back story. We bought our house a little over a year and a half ago, and it has upstairs laundry. Our dryer, which was bought used off some friends awhile back was really struggling to dry our clothes, especially large loads. We're talking taking two to three 70 minute cycles to dry clothes. So when black Friday came around we went and bought a brand new set. Unfortunately, it didn't seem to give us the drastic drying time increase we were expecting, so then we hired a company to come out and clean the exhaust line and that is when we discovered two things. First, the line was clogged with all sorts of lint from years of use without being cleaned, and second, the dryer line was pushing 40 FEET LONG!! For whatever reason, the idiot builders of the house decided (my guess is they forgot until it was too late) that rather than putting the dryer next to the exterior wall upstairs and having it exhaust a total of 18" out the wall, instead they put it as far away from the wall as you could in the room, and have the exhaust go 90* down, 90* to the right, then 6 feet towards the middle of the house, then 90* again down, drop an entire story to go under the house into the crawl space, 90* bend again and then a 30ft run to the side of the house. Mind you now, that each 90* bend adds about 5-7ft equivalent length to the dyer run. So after the cleaning we still weren't seeing very good drying times, and our brand new dryer was getting very hot to the touch as it tried to dry clothes, and push the hot moist air out the exhaust line. We had tons of wet lint build up inside the dryer to the point that after every load (which typically took two cycles) we would have to wipe down the door from all the small wet lint, and we even had some instances where the moisture would build up so much inside that we would get beads of water rolling down the front of the dryer from the dryer door. This is when I started researching products, and ultimately came to buy the Fantech DBF 110 Dryer booster fan, and absolutely couldn't be happier with that decision!! Install was pretty easy, the hardest part for me, was wiring in a new outlet under my house so that I had the option to unplug this unit when it was time to do preventative maintenance on it vs. having it hard wired 24/7. One negative for my application, was that the really cool feature of the auto on/off sensor (another reason I bought this unit over others) doesn't work for me. The reason being, is that I installed it on the straight run under my house, and there is just too many 90* bends ahead of the unit that cuts down the force from the dryer upstairs and it doesn't have enough pressure to activate the sensor. So I had to simply follow the wiring diagram in the manual and rewire the unit so it just ran 24/7 once plugged in. I then bought a RF switch that I plugged it into so that I now have what looks like a car key remote hanging next to my dryer upstairs, and when we run a load, we push the button on the key fob, and it turns on the fan, and when we're done it we hit the button to turn it off. It works out really well, and we will save the life of the fan a little by not running it all the time. Bottom line this unit is worth every penny, we can now dry large loads of laundry in 40 minutes, and on smaller loads, even less. I would happily recommend this product to others who have similar needs. Total now, I've had this unit in place and running for about a month with no issues.
Review: Good Dryer Booster Fan but always install a lint trap. - Update: Jan 2024. The fan started vibrating a couple of weeks ago, so I thought it was time to replace the unit. I was wrong. All I had to do was uninstall it and give it a good cleaning. There was some build up on the blades but not as much as thought there would be because hot air going into a cold attic will produce moisture inside the pipes and the fan. I know I should clean it more often than I do. I do clean the pre filter quite often. The fan has been running for almost eight years with poor Maintenace which shows how good this product really is. After I cleaned it, reinstalled it, the fan is working just like it did when it was new. If it does go bad I will replace it with the same unit. Original review below: 2016: Our house was built with the Dryer on the inside wall of the house so the only way to vent it was through the roof. It has worked for years but was not efficient. I pulled the hose out from the roof and let it blow into the attic. BIG MISTAKE. Not only did it put sticky dryer lint on everything stored in the attic but all the damp air caused mold to grow. I decided that the only way was to install a booster fan. My biggest problem was the central heat and air ducts ran right over the area I needed to mount the booster fan so I had to build a stand for it. I decided to add a lint trap even though I was over 15 foot from the dryer to the booster fan hoping this would keep some of the extra lint out of the booster fan. First off the booster fan is good and sturdy but you will have to do some work to install it. You must install the rubber grommets in the provided plate. I found the metal mounting plate to be light weight but strong enough to support the fan. The nice thing about the light weight support plate it lets you bend it to conform to the round bottom of the fan that you must drill holes in for the screws. Yes it is kind of hard to start drilling holes in a new fan but no two installations are the same. I installed a electric outlet in the attic and put a cord on the new fan in case I have to remove it for some reason. With the lint trap in line there should be very little lint getting into the motor but lint can get into anything. When I compare the quality of the booster fan with the quality of the lint trap I am happy with the booster fan. The lint trap is another story. There are about 3 or 4 different lint traps sold on desertcart but after reading the reviews they are all made of the same poor quality. After you purchase the lint trap go the the hardware store and get some heavy duty weather stripping. You will have to stick one strip in the bottom of the lint trap from corner to corner (see pictures) in the same direction the screen runs to seal the built in screen to the bottom of the lint trap housing. Once you put the weather stripping in the bottom you must put more weather stripping around the top to close the gap that was caused by the weather stripping at the bottom. I put weather stripping around all of the removable top (see pictures) were it meets the main box. This will give you a better seal and should stop most of the lint from escaping. I then temporally clamped the top to the bottom so the edged of the box will make some groves in the weather stripping on the top cover. I found for me the semi ridged pipe works better than the real soft pipe. You can take advantage of the 90 degree pipe adapters available. When using the booster fan you use up to 60 foot of pipe and 6 elbows. UPDATE on the lint trap. I added the lint trap because I thought it was a good idea but I didn't really need it because I was more than the 15 foot they say you need from the dryer to the booster fan. I am so glad I added the lint trap. We always clean the lint filter on the dryer after each use, no exceptions. After only 4 loads of clothes the screen on the lint trap was full of lint. Part of this was caused because I moved the original pipe around and knocked some of the lint that was stuck to the sides of the old pipe loose. The booster fan with the amount of air it moves cleaned out the full 20 foot of existing pipe that comes from the ground floor to the attic. I will be checking the lint trap in the attic more often then I thought I would have to. Sure glad I made it easy to get to.

## Features

- CFM: 167

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000GXF7KO |
| Air Flow Capacity | 167 cfm |
| Best Sellers Rank | #180,459 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,587 in Dryer Replacement Parts |
| Brand | FANTECH |
| Brand Name | FANTECH |
| Compatible Devices | Clothes Dryer |
| Cooling Method | forced air, forced convection |
| Customer Reviews | 4.4 out of 5 stars 749 Reviews |
| Global Trade Identification Number | 00650737121105 |
| Item Dimensions L x W x H | 6"L x 5"W x 7"H |
| Item Highlight | Dryer booster fan delivers up to 167 CFM through 4 in duct to support long dryer vent runs and improve airflow |
| Item Type Name | Fan |
| Item Weight | 8 pounds |
| Manufacturer | Systemair/Fantech |
| Material Type | White |
| Maximum Rotational Speed | 2200 rpm |
| Model | DBF110 |
| Noise Level | 30 db |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | DBF110 |
| Power Connector Type | 3-Pin |
| Product Dimensions | 6"L x 5"W x 7"H |
| UPC | 696335226200 650737121105 |
| Unit Count | 1 Count |
| Voltage | 120 volts |
| Wattage | 80 watt-hours |

## Product Details

- **Brand:** FANTECH
- **Compatible Devices:** Clothes Dryer
- **Cooling Method:** forced air, forced convection
- **Material:** White
- **Maximum Rotational Speed:** 2200 rpm
- **Noise Level:** 30 db
- **Power Connector Type:** 3-Pin
- **Product Dimensions:** 6"L x 5"W x 7"H
- **Voltage:** 120 volts
- **Wattage:** 80 watt-hours

## Images

![Fantech DBF 110 Dryer Booster Fan 4" Duct 167 CFM - Image 1](https://m.media-amazon.com/images/I/31aO6VjBKjL.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Questions & Answers

**Q: I'm thinking of buying one but will I still be able to have my duct cleaned after it is installed? I'm the thinking it will be in the way.**
A: Good product -- Recommended.  We purchased this unit to replace the exact same original unit installed by the builder.  We didn't know the blower was in our attic, so the original failed due to neglect after 11 years of service (a long time in my opinion).  We did not install a separate inline filter (such as the Fantech DBLT 4W Lint trap, 4" Duct) because there is no place for us to install one unless we open up the walls and completely redo the duct system.  Instead, I simply remove the unit each winter and use a duct cleaning brush attached to my drill (https://www.amazon.com/Bluesea-Cleaning-Removes-Synthetic-Attachment/dp/B08MC554YH?ref_=ast_sto_dp) to remove lint build up in the lines (you will have some) both up and down from the blower.  I also remove and clean the blower unit which traps lint on both sides of the blower.  After cutting electrical power to the blower at the breaker box (VERY IMPORTANT STEP), I simply remove the unit for maintenance.  The goal is to remove any lint layers that have built up on the blades or walls of the unit.  A set of wooden chopsticks and a shop vac make the job pretty easy.  The overall job is not that difficult, but you will spend time in your attic to get this done, so proper respiration, eye safety, and electrical shock prevention are required.

**Q: I purchased 32 of these for a new apartment building. 10 of them run continuously. Does anyone know how to fix this or are they defective?**
A: From memory, and I'm guessing here ... the switch diaphragm must be mounted vertically.The switch is activated by airflow throw the plastic tube (it's a clear tube on mine) that runs from the bottom of the fan housing up to the electrical components. Take that tube out of the housing and plug it (tape the end). Let it sit that way for 10-15 minutes and see if it still runs.If it still runs and never shuts off, you may have a defective switch.If it stops, your switch is probably good. I believe I remember that moving that tube further in/out of the housing can adjust the sensitivity. Meaning I think if you slide the tube into the housing further, the switch will activate more quickly/easily. If you pull the tube as far as it can go without taking it out completely makes it less sensitive.If you have some continuous source of airflow, obviously, the fan will blow all the time. But I thought the switch was set to stop at 10 minute intervals and never continuously run - not sure - I thought I remember this feature.

**Q: Do you nnee a lint catcher with this? Or will you be fine without it?**
A: The rationale behind 15 ft...
If your vent fan is 15 ft or more from your dryer then the lint coming from the dryer will be dry enough such that it will not stick to the vent fan blades and later create imbalance, increased load, and inefficiency. The lint needs to be fairly dry when it reaches the fan blades. If the fan is within 15 ft of the dryer the lint will still be damp and a lint trap will be needed. Get the fan at least 15 ft away from the dryer and no lint trap is needed.
Note... If you do get a lint trap make sure you measure the dimensions. It may be deeper than your wall you plan to mount it in. If I remember right the lint trap is around 7 inches deep and many walls are not that deep.

**Q: can this be used with gas dryer?**
A: It is activated by the pressure in the exhaust tube and runs on it's own hard wired power supply. I did not see anything on the product description that specifies that it cannot be used with a gas dryer. You could always contact Fantech Customer support: Customer Care10048 Industrial BlvdLenexa KS 66215Tel: 800.747.1762Fax: 800.487.9915USsupport@fantech.net

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth every penny! Dry times are now down to 40-60 minutes vs. nearly 2-3hrs on large loads!
*by W***4 on February 27, 2014*

UPDATED 8/6/15: Still LOVE this unit, and it has continued to work flawlessly! I had marked my phone's calendar for the one year mark since installation as a reminder to crawl under the house (where I installed it) take it apart and clean it, clean the exhaust vent as well (as best as I could) and put it back together as general maintenance. I'm glad I did, as the unit had some build up lint for sure inside of it. Not that you would know it, as it continued to run perfectly, but could've perhaps reduced the life of the unit had it gone too long, I don't know. Anyways, quick and easy to uninstall, clean, and reinstall, and I reset my calendar for another year and I should be good to go. Definitely recommend this to anyone with poor drying due to long vent runs. ----------------------------------------------------------------------------------------------------------- I typically don't write reviews, but I wanted to share how incredibly well this unit works for us and for the price is worth every penny! A quick back story. We bought our house a little over a year and a half ago, and it has upstairs laundry. Our dryer, which was bought used off some friends awhile back was really struggling to dry our clothes, especially large loads. We're talking taking two to three 70 minute cycles to dry clothes. So when black Friday came around we went and bought a brand new set. Unfortunately, it didn't seem to give us the drastic drying time increase we were expecting, so then we hired a company to come out and clean the exhaust line and that is when we discovered two things. First, the line was clogged with all sorts of lint from years of use without being cleaned, and second, the dryer line was pushing 40 FEET LONG!! For whatever reason, the idiot builders of the house decided (my guess is they forgot until it was too late) that rather than putting the dryer next to the exterior wall upstairs and having it exhaust a total of 18" out the wall, instead they put it as far away from the wall as you could in the room, and have the exhaust go 90* down, 90* to the right, then 6 feet towards the middle of the house, then 90* again down, drop an entire story to go under the house into the crawl space, 90* bend again and then a 30ft run to the side of the house. Mind you now, that each 90* bend adds about 5-7ft equivalent length to the dyer run. So after the cleaning we still weren't seeing very good drying times, and our brand new dryer was getting very hot to the touch as it tried to dry clothes, and push the hot moist air out the exhaust line. We had tons of wet lint build up inside the dryer to the point that after every load (which typically took two cycles) we would have to wipe down the door from all the small wet lint, and we even had some instances where the moisture would build up so much inside that we would get beads of water rolling down the front of the dryer from the dryer door. This is when I started researching products, and ultimately came to buy the Fantech DBF 110 Dryer booster fan, and absolutely couldn't be happier with that decision!! Install was pretty easy, the hardest part for me, was wiring in a new outlet under my house so that I had the option to unplug this unit when it was time to do preventative maintenance on it vs. having it hard wired 24/7. One negative for my application, was that the really cool feature of the auto on/off sensor (another reason I bought this unit over others) doesn't work for me. The reason being, is that I installed it on the straight run under my house, and there is just too many 90* bends ahead of the unit that cuts down the force from the dryer upstairs and it doesn't have enough pressure to activate the sensor. So I had to simply follow the wiring diagram in the manual and rewire the unit so it just ran 24/7 once plugged in. I then bought a RF switch that I plugged it into so that I now have what looks like a car key remote hanging next to my dryer upstairs, and when we run a load, we push the button on the key fob, and it turns on the fan, and when we're done it we hit the button to turn it off. It works out really well, and we will save the life of the fan a little by not running it all the time. Bottom line this unit is worth every penny, we can now dry large loads of laundry in 40 minutes, and on smaller loads, even less. I would happily recommend this product to others who have similar needs. Total now, I've had this unit in place and running for about a month with no issues.

### ⭐⭐⭐⭐⭐ Good Dryer Booster Fan but always install a lint trap.
*by R***T on June 13, 2016*

Update: Jan 2024. The fan started vibrating a couple of weeks ago, so I thought it was time to replace the unit. I was wrong. All I had to do was uninstall it and give it a good cleaning. There was some build up on the blades but not as much as thought there would be because hot air going into a cold attic will produce moisture inside the pipes and the fan. I know I should clean it more often than I do. I do clean the pre filter quite often. The fan has been running for almost eight years with poor Maintenace which shows how good this product really is. After I cleaned it, reinstalled it, the fan is working just like it did when it was new. If it does go bad I will replace it with the same unit. Original review below: 2016: Our house was built with the Dryer on the inside wall of the house so the only way to vent it was through the roof. It has worked for years but was not efficient. I pulled the hose out from the roof and let it blow into the attic. BIG MISTAKE. Not only did it put sticky dryer lint on everything stored in the attic but all the damp air caused mold to grow. I decided that the only way was to install a booster fan. My biggest problem was the central heat and air ducts ran right over the area I needed to mount the booster fan so I had to build a stand for it. I decided to add a lint trap even though I was over 15 foot from the dryer to the booster fan hoping this would keep some of the extra lint out of the booster fan. First off the booster fan is good and sturdy but you will have to do some work to install it. You must install the rubber grommets in the provided plate. I found the metal mounting plate to be light weight but strong enough to support the fan. The nice thing about the light weight support plate it lets you bend it to conform to the round bottom of the fan that you must drill holes in for the screws. Yes it is kind of hard to start drilling holes in a new fan but no two installations are the same. I installed a electric outlet in the attic and put a cord on the new fan in case I have to remove it for some reason. With the lint trap in line there should be very little lint getting into the motor but lint can get into anything. When I compare the quality of the booster fan with the quality of the lint trap I am happy with the booster fan. The lint trap is another story. There are about 3 or 4 different lint traps sold on Amazon but after reading the reviews they are all made of the same poor quality. After you purchase the lint trap go the the hardware store and get some heavy duty weather stripping. You will have to stick one strip in the bottom of the lint trap from corner to corner (see pictures) in the same direction the screen runs to seal the built in screen to the bottom of the lint trap housing. Once you put the weather stripping in the bottom you must put more weather stripping around the top to close the gap that was caused by the weather stripping at the bottom. I put weather stripping around all of the removable top (see pictures) were it meets the main box. This will give you a better seal and should stop most of the lint from escaping. I then temporally clamped the top to the bottom so the edged of the box will make some groves in the weather stripping on the top cover. I found for me the semi ridged pipe works better than the real soft pipe. You can take advantage of the 90 degree pipe adapters available. When using the booster fan you use up to 60 foot of pipe and 6 elbows. UPDATE on the lint trap. I added the lint trap because I thought it was a good idea but I didn't really need it because I was more than the 15 foot they say you need from the dryer to the booster fan. I am so glad I added the lint trap. We always clean the lint filter on the dryer after each use, no exceptions. After only 4 loads of clothes the screen on the lint trap was full of lint. Part of this was caused because I moved the original pipe around and knocked some of the lint that was stuck to the sides of the old pipe loose. The booster fan with the amount of air it moves cleaned out the full 20 foot of existing pipe that comes from the ground floor to the attic. I will be checking the lint trap in the attic more often then I thought I would have to. Sure glad I made it easy to get to.

### ⭐⭐⭐⭐ Horrible directions, eventually got it to work. Used on our boat.
*by G***0 on September 25, 2024*

We purchased this booster to replace the 20 year old booster blower on our 2004 SeaRay 480 sedan bridge. The washer dryer combo was not drying clothes properly. We spent hours trying to remove the old booster unit from a tiny space under the vip guest bed. We got it out, the new one all hooked up and it didn’t work:0 5 hours of tedious labor. My husband tested it by disconnecting the clear tubing from the base and blowing into the tube; the fan kicked on so the blower was good. Turns out we had a blockage in the washer dryer combo machine, not the 4" venting system, that prevented enough airflow to start the booster. The boosters sensor needs to feel the air from the dryer to turn on. The washer dryer combos do not have much airflow to begin with, hence a working booster is a must have. It took 5 hours to figure out how to get the poorly designed washer dryer boot cleared. We heard the vacuum suck something up, so we assembled it all back together and the booster works as designed. It runs an extra 10 minutes after the dryer turns off. On a boat, this is not an easy replacement job. According to my husband, the directions are awful, but now my clothes are drying better. The 4” wide exhaust system on the boat is too long so this booster attaches to the 4” flexible vent hose and helps suck the air out to the vent located at least 20 ft away from the washer dryer. The part is expensive, but necessary. The fan is very quiet. You don’t know it’s running even if you are sleeping on top of the bed its located under. Periodically check the booster's clear tubing. We read this sometimes gets clogged and needs replacing. Since we were unable to remove all the surrounding wood and paneling we used the existing bracket that was from the old unit. We probably replaced a working unit but once replaced we were not going to remove it. My husband did not re-adjust any settings to the booster. Again, awful minimal paper directions, he had to use a QR code and try to read the manufacturer directions from his phone. Hopefully if you are a boat owner the job is not as complex for you and my review helped. The booster does do its job as described.

## Frequently Bought Together

- Fantech DBF 110 Dryer Booster Fan 4" Duct 167 CFM
- HOOMESUN Dryer Duct Lint Trap, Indoor Dryer Vent Kit with 4inch 8FT Dryer Vent Hose, 2 Clamps, 2 Stainless Steel Mesh, Secondary Lint Trap for Electric Clothes Dryers - Dryer Lint Catcher(Metal)
- Fantech FC 4 Mounting Clamps, 4" Duct

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-10-16*