AC Infinity AIRLIFT S14, Shutter Exhaust Fan 14" with Speed Controller, EC Motor - Wall Mount Ventilation and Cooling for Sheds, Attics, Workshops

On time and as described

Bought this for my attic to help cool it down in the hot months. It’s only late March so I can’t speak for actual summer temps yet. It does lower the temperature and I hope it will be enough for the summer. This is a 14 inch. it’s dark outside so I didn’t go take an exterior picture. For the price, I sure hope it works for many years to come. It’s not exactly quiet, but it’s not annoyingly loud. I’m OK with the volume inside and outside the shutters. Always close when I turn it off, as I they should. It’s been a little over a month. Will know more in the coming months. .

Definitely seems to be a better fit & finish than some other cheaper ones out there, and I opted for this one for the possibility of adding the thermostat in the future. Seems half-decently balanced, it for sure vibrates a little bit, but not at all a violent or loud shaking against my sheetmetal siding I was nervous about. Giving it 4 rather than 5 stars because I think the shudders could DEFINITELY seal better upon closing. Water intrusion shouldn't be an issue thanks to the angles and coverage, but it is for certain not insect proof. I don't think it would have been too difficult to implement a better seal or very soft spring or better design for gravity assist.. who knows. The gap is plenty big for wasps and then some to find their way through when closed, and knowing how they like to build nests under my barn soffit/eaves, I don't think itll be long before they find their way into my shop. I wouldn't expect it to be gnat or mosquito proof by any means... but there's a solid quarter to half inch gap there. I may need to design a screened solution in the future. That also means when I heat the building in the winter months there will be some considerable losses through this, so like the screen solution, I may need to make a removable cover for it. Overall I still think it's a major improvement and a must-have for barns/shops/outbuildings etc to both get rid of that hot and stagnant air, especially in taller structures, in the summer months, as well aa help clear out smoke/dust/fumes from engines, welding, cutting/grinding, paint, etc in a shop setting like mine.

I used 4 of these in my attic in an unconventional way - I do not have a gable but I do have the typical square vents in my older roof. I mounted them under 4 of those vents. yes 12's might have been a better fit but I went with the 14's to run them slower for less potential noise. I also took the time to properly wire 4 outlets for the fans which the power feed came from the one attic light that the house had. If you do this take the time to do it right for safety sake! I took the shutters off since these would be mounted on a 45 degree angle and mounted them to the the studs on the roof and boxed it in with 2 other 2X4's connecting the existing studs. it seals it well enough against the roof vents. I picked these because they could be mounted on an angle and because they have efficient motors which will pay for themselves in a short period of time. I have a 3130 sq house with a mostly 1st floor layout so there is a lot of roof that all the heat goes right to the 2nd floor and right above the 3 kids rooms. There use to be a wall of heat you would hit when going up the stairs and no amount of vent boosters in those rooms would help. Now with these 4 fans running we no longer have that issue and the A/C runs less. I only run the fans on half speed because they are blowing through a vent that is smaller than the fans and running them full speed would just create noise and extra power draw for no reason. I've been waiting on the Wifi controller to be available again but I might just get the bluetooth one for now so I can play with the fan speeds through out the year and not need to go into the attic. I'm VERY HAPPY with these purchases!

I use this as an exhaust fan for my kitchen on a window shelf. Very powerful and will prevent any smoke build up you can throw at it. There are many uses for this product and the remote comes in real handy. Many adjustable speeds to fit your needs. 👍