Systemair Dryer Booster Kit with Fan DBF 4XL Fantech

Great product and it has been working perfect for the last 2 months. Installation did offer up some minor challenges. I think it was because I wanted to do it in a way that just was not going to work. So I was stuck on that idea. Go through the trouble and create the outlet like they want you to do. It made the final installation so much easier. Mine ended up 7 to 8 feet away from the outlet of the dryer. That may or may not be too close. It is in a position where I can clean it, fix it, adjust it, or change it out easily. The main thing is that it works. The pressure switch works perfect. It is ducted using 99 percent rigid ducting. I used flexible ducting between the lint trap and the booster fan to easily clean it out and get a vacuum in it to clean it out. I foil taped every seam to lock everything together, and it helps to keep the static pressure up. It blasts the air outside. The clothes are drying much faster and the system works great. The mounting hardware works but you will want to add to it in a way you think it would work for you. The screws are an issue. Just use the right size and pay attention. I was able to use strapping for more support. Do not mess around with trying to get to secretive with the fan. You will need to get to it all the time. If you are older and have knee issues do not try and place it in the corner of an attic just to make your wife happy and show off to your friends. This is a situation where functional use needs to out rank visual appeal. I know how guys think. Always wanting to hide everything. No one really cares anyway. Make it work and move on.

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 Amazon 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.

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