Fantech 6" Inline Fan- FX6XL- 392CFM

 (3 customer reviews)

I'm using this fan as a duct booster. I added two vents to a sunroom at the far end of our house but was getting very little airflow from our furnace due to the distances involved (about 50 feet thru a 6" duct, about half of that being insulated flex duct). I wasn't sure how much boost power I needed so bought a somewhat overpowered fan and also a speed control to slow it down if necessary. At full power, this fan blows a LOT of air, so much so that it robs a noticeable portion of the air from the other vents in the house, so I do use the speed control to tame it down. It's a bit noisier than I had hoped. There's absolutely no noise coming out of the vents that it actually feeds through the flex duct, but the fan noise does travel back to the main duct and out the other vents in the house. I added a duct muffler, which helped somewhat, but the noise level is still noticeably higher than that produced by the furnace blower alone. The fan seems to be well built. The installation...Read more

I bought the FGXL6 as a booster fan. My family room is services by a 6" flex duct that, due to the design of the house, is extremely long. The total run is approximately 40 foot. Running a more direct duct would have been cost prohibitive. So, I decided to investigate booster fans. Do not confuse this fan with the axial fans that you can buy from the big box stores for 25-35 dollars. Those fans will not work well under the static pressures encounter in a duct. As an experiment, I connected one of those axial fans and could not feel a difference.

The FGXL6 is completely different. It is designed to operate well under static pressure. When I connected this fan, the difference was better than I had hoped. My family room is north facing, at the end of the house, and on a slab. With the original HVAC system in the winter, the room was 6 - 10 degrees colder than the rest of the house, depending on the outside temperature. With the FGXL6 running, the family room is now only about...Read more

This barely moves any air.
I have 5 feet of 4x8 rectangular duct followed by this fan, followed by a 7 inch exhaust. This fan is in between and it barely moves any air from my stove hood.