Works perfect

B.M. · 6 July 2025

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Better airflow for my dryer's exhaust

S.H. · 7 April 2015

I bought this booster fan to create better airflow for my dryers exhaust. This model comes with its own power supply so all you need is an outlet to plug into. The cord is only 5 1/2 feet so I needed to run an extension cord. The DBF 110 requires hard wiring. The fan was installed in a horizontal position and I did not use the support piece that was provided since I was running the rigid exhaust line in such a way that there would be no place to anchor it. Essentially it is being held up by the line itself and the hangers that support the line. The fan is supposed to run in 10 minute intervals as it senses air flow, however as soon as it is plugged in, it begins to pull air through. The dryer which used to collect excessive lint, overheat and burn clothes now runs super cool and the lint is collected on the lint filter (which I also purchased new from Bolo for my Electrolux dryer) and/ or the lint is blown out of the line with the help of the fan. You can actually hear the debris flow through when you first turn it on. If you plan to install the fan within 5 feet of the dryer you will need to order Fantech's lint trap before the fan. I didn't need to but when I called Fantech's tech support they explained this to me. I installed it in the recommended location which is with 5 feet of the outside wall. Additionally, my entire line is exposed so I have easy access to the fan for routine maintenance, which I think is every 6 months to a year. Fantech has great tech support M-F 8-5 if you need it. I took out the flexible duct work that was existing and replaced with clean rigid pipe. If you are not replacing your exhaust line, then you will at least, need to thoroughly clean out your line as per the manufacturer's installation recommendation. Some people have complained that it is loud but certainly it is not louder than a dryer and it helps you know it is on since this particular model does not have a visual panel to let you know it is running. My only complaint is that it has no switch to shut down the fan before unplugging it as I usually unplug the fan after I'm done drying and I just don't like the idea of pulling the plug while the fan is actively running, but I can't determine where in the 10 minute run cycle the fan is in to wait around to unplug it while its still running. Most will have it plugged in constantly. In that case you may need to adjust the pressure sensor so that it is not so sensitive. I didn't spend time figuring that out since i will always unplug it. All in all, it does the job great.

Great product - Very effective in boosting dryer efficiency

A.M. · 3 August 2016

As others report, the booster fan is a must for anyone with laundry room that is anywhere except on an exterior wall. The typical exhaust capability for a dryer of 50 feet or less get used up pretty quickly when you add 3 or 4 elbows plus an exhaust port, and you deduct 8 feet per elbow and port from your 50 feet.My particular arrangement has the dryer in an inside room about 40 feet from the exterior wall with 4 elbows (and the exhaust) so the equivalent length is about 80 feet. I used 4 inch galvanized ducting in my installation, taping all the seams and joints with foil duct tape, and placed the booster fan at the end of the first 5 foot straight run of duct from the dryer per the instructions. I did use 4 inch duct clamps on both sides of the booster fan so I could remove the fan without too much trouble. The installation went pretty smoothly, but did take time as I am a do-it-yourselfer and don't do this for a living, which is a good thing. Reading and re-reading the instructions is essential.There have been a lot of comments in other reviews about the mounting bracket screw being too long and hitting the fan blades. I don't know Fantech has changed the design by the time I made my purchase, but I did not have any problems. I did make sure that the screw holes that I drilled were as close as possible to the outside of the fan housing. I have enclosed a couple of photos showing the screw hole location on the fan housing and the bracket mounted on the housing. The orientation of the housing around the fan axis will be different depending on mounting location between floor joists or wall studs.I also installed the Fantech secondary lint trap in the duct run near the top of the dryer exhaust at a convenient location so it could be easily removed and cleaned after every load. This was also a recommendation in the installation instructions. It is amazing to see the amount of lint that makes it to the secondary filter.When the dryer turns on, a the diaphragm switch on the booster fan senses the increased pressure in the duct work via a sensor tube just upstream of the booster fan. The fan has been in place for a couple of month and has been working great. Definitely would recommend

Met expectations!

T.P. · 3 April 2025

It was a similar unit to the old one. It was installed easily not requiring any special skills.

Really reduces drying time, but mounting system badly needs redesigning

D.R. · 27 March 2015

First, the positives. As others have said, this booster fan makes a huge difference in drying time. In our situation, prior to installing this fan, we had so much moisture buildup within the dryer that the automatic moisture sensor would cause the dryer to run forever - had to resort to manual timer cycles, and even then the drying times were excessive. After installation of the fan, the automatic sensing cycle works again and the drying times are about 50% of what they used to be.Now the reason for a less-than-five-star rating. First, the installation instructions are really not very good. They are quite general to allow for a variety of installation situations. Be sure to read the instructions completely and see which steps apply to your particular situation, before you do anything. If you follow the steps in instructions in sequence, you may find you have to undo something later on. Secondly, the mounting "system" really needs to be redesigned. As currently designed, you attach the fan to the mounting bracket by screwing through the exterior case of the fan. As others have noted, even when you use the shortest screws supplied with the fan to attach the fan to the bracket, you can get the fan blades hitting the ends of the screws. Even shortening the effective length of the screws by using washers may not solve the interference problem. If you run the fan in this condition, you will either the fan blades or burn out the motor, so be careful to check for interference before you apply power to the fan. In my case, when I backed out the screws to the point that I no longer had interference, I had only one or two threads through the fan case - not enough to support the considerable weight of the fan when mounted vertically. Since the fan can be mounted either vertically or horizontally, and may need to be rotated if mounted horizontally to set pressure sensor sensitivity, I realize that the manufacturer was trying to allow flexibility in mounting positions with this simple bracket design, but it doesn't work. If you're installing this fan vertically, I highly recommend you also purchase the special Fantech clamps sold separately which not only damp vibrations, but also provide a place to attach a strap with which to secure the fan to a nearby joist.Manufacturer -- What is needed for an improved mounting system is the following: L-shaped tabs spot-welded to the case of the fan in such a way to allow either horizontal or vertical mounting, and a slotted mounting bracket that would allow rotation of the fan in the horizontal plane if required to adjust the pressure sensor sensitivity. This type of mounting system would involve no penetration of the fan case and greatly reduce the chance of damaging the fan during installation.Installers - take note that the pressure sensor switch that turns the fan on when the dryer is running is VERY sensitive. In my case, it was too sensitive - breezes blowing past the roof vent caused enough pressure differential in the dryer duct to cause the fan to run constantly, even though the dryer was not running. Because my fan is installed in the attic and the laundry room is on the second floor, to avoid constant trips to the attic to unplug the fan, I solved this problem by installing a switched outlet for the fan in the attic, and an on-off switch in the laundry room to control the outlet. Extra work, but now the fan only runs when we want it to.