FANTECH2SHE0721 Axial Wall Shutter Fan, Direct Drive, 1/30 hp, 115V, 1 PH, TEFC, 7"

so when I first got it I immediately noticed that the frame is bigger than 12x12. So I just cut it....that was not easy...which is a good and bad thing. Good cause it's a thick hardened piece of metal but bad cause I needed to cut it to make it fit. Didn't take long to install, then the FAMOUS FLAW!. The very loud clunking/clattering noise. At first I thought maybe something was loose. Nothing was loose but notice a huge...design flaw. The fan drive shaft has a bit of slack. The shaft moves front and back freely. I noticed the noise will stop when putting pressure on the shaft at the back portion of the fan(the enclosure) so I made a contraption with some tie straps to put pressure on the back of the enclosure to stop the noise. THEN...I got to wondering maybe it just needed grease...so I opened up the enclosure, 4 clips which can come off easy with a flathead, to find that the shaft had grease all around but totally away from the shaft...BINGO! I lubed the shaft, I used RoyalPurple Grease but any bearing grease will work, that's the grease I personally prefer. The noise as of right now, a few days later, is totally gone. I'm a wood worker so I needed it to eliminate the wood dust in the air. Then 2 more flaws, the flaps don't open all the way up when on, nor do they close totally close and this will become an entrance for insects (even when totally closed there's gaps on the sides). To fix this I put car wheel balancing weights on the flaps to give more weight when they close...that fixed the closing issue...while still not compromising how wide the flaps open. The bug issue now (gaps on the sides when the flaps are totally closed), between the fan propellers and flap enclosure I put a window screen which I was scared may hit the propeller but didn't. So all flaws were fixed. This is a very expensive fan and didn't think I would need to modify it so much to make it work. But at the end it's very well built with quality materials. I hope this review helps, it is long but worth it if you find yourself with these issues. I included pictures of the shaft before and after grease.Update: After a week the loud clattering noise came back. I did a lot of research and have come to the conclusion that even though the outer portion of the fan seems to be well made. They design of the actual motor is very poorly. The rear end of the motor has a "sleeve" bearing. Meaning the shaft is riding on a sleeve...not a ball bearing. Also the amount of movement of the shaft is significant,, more than 1/2 inch. Which i believe is the main issue of the noise. Im going to try to call Fantech and see if maybe the propeller is unbalanced causing vibration or what. But at this price range I shouldn't have to be going through these steps.

Reading reviews on this and other exhaust fans of this type is a frustrating experience, so I'll try to make this review as honest and clear as possible. First, I am a fairly proficient "handyman" type. I don't call repair persons unless 1) it's a plumbing issue other than clogged drain, or 2) it's an electrical issue that involves the main, or 3) it involves larger work (i.e., replacing a roof) or requires expensive, specialized tools (i.e., a backhoe or wrecking ball). I've had good luck and a lot of experience DIY-ing.This fan came out of the box fully intact and ready to be installed. The only other item in the box was something that looked painfully like an instruction booklet, which I quickly discarded. I measured the frame around the shutters (10.25" x 10.25") and used this measurement to cut the hole in the location I wanted to place the fan. I then placed the fan in the newly cut hole, facing out, and used the pre-drilled screw holes on the mounting plate of the fan to screw in 4 appropriately-sized wood screws. It held tight.I then attached a cord with a plug on one end to the black and white wires that were sticking out of the fan unit. Plugged it in, and voila, it worked, and my work was done.Pros: It is what the description said it was - Honest price (time will tell more). It's all metal. It was easy to "see" how it worked and how to install it. It appears to move quite a lot of air. It is NOT silent, but it's NOT louder than a good-working box fan. There are no vibrations that concern me, and the fan appears to be well-balanced. The shutters work as expected; they open when the fan is on, and they close when it's off; shutters are NOT air tight, and I didn't expect that.Cons: The only real negative thing for me was the 2 black and white wires sticking out of the TOP of the motor housing. Seems like they should stick out of the bottom instead. Only about 5" of wire was included. I would have like to see this feature be a bit more heavy-duty and secure. I may rewire that part myself. This was the deal-breaker for 5 stars.Since this fan was just installed, I can't vouch for it's long-term veracity. But I will edit this review if it turns out to be a dud, or if it knocks my socks off with a superior performance. Or even if it just works as planned.

This is shipped in light cardboard box with a minimum of support material inside. Mine arrived with one of the support flanges slightly bent. I was able to straighten it with a pair of pliers. There are some very sharp edges on the shutter frame that I filed off. I built a wood frame and mounted it in an existing window opening in my shop.The motor has two short wires and a ground stud located inside a small junction box. You can either splice in a cord with a plug or hardwire the unit. I choose to hardwire and added a on-off toggle switch on the wall. When I went to place the conduit fitting in the junction box on the motor, I noticed that the ground screw prevented tightening the nut until the ground wire was secured. A bit awkward but no big deal. The other problem I had was in trying to secure the motor junction box cover, The supplied screw just would not thread into the supplied mounting hole. I finally used a small sheet metal screw to hold the cover. If you have to do this, be sure to file off the point so that it will not penetrate the insulation on the motor wires.The fan runs fairly quiet and almost vibration free. It will clear the air in my 5000 cu. ft. of sawdust in around 5 minutes. The shutters operate smoothly, however they do not close off completely when the fan stops. This may cause a problem with bugs entering into my shop, not to mention the draft on windy days.With most exhaust fans this size in the $300.00 and up range; what you get is what you would expect at this price point. I would not buy this for continuous commercial or industrial use but for the occasional use in my home workshop it is just fine.

Great CFM, used it in reverse to pull cool air from the outdoors during the cooler parts of the year to cool my place, worked like a charm.

Le moteur devient très chaud après 12 minutes d'utilisation, je l'ai testé à 59 degrés celcius alors je l'ai fermé pour ne pas qu'il prenne feu.This fan gets really hot after only few minutes of usage. I tested it at 59 Celcius degrees, I returned it before it took in fire.

the frame is a bit to small