AC InfinityCLOUDLINE PRO T12, Quiet 12” Inline Duct Fan with Temperature Humidity VPD Controller, WiFi Integrated App Control - Ventilation Exhaust Fan for Heating Cooling, Grow Tents, Hydroponics

i wana make quick review of CLOUDLINE PRO T12. -its been ALMOST 3 WEEKS with outside 85-90-100°F nonstop almost-- and im blown away with results. my back very fur rooms never got cooler than 85 degrees. > now with this Fan it got to 72.8°F --NOW ITS THE COOLEST PART OF THE WHOLE HOUSE !!!!!! --its been 1 week fan nonstop -see my screenshot -love it handles it like nothing.

I have a wood burning stove in the front room of my house. Even at 20 below I can get that room toasty, but I need a solution to move that heat around the house. I was able to create an intake at the top of my 18' high ceiling, run some duct and then tap into the existing hvac duct in the crawl space. I am now able to take that heat and move it to the rear of the house. It's too warm. I do not hear the fan in the crawl space even at the highest speed. The packing was amazing and came with all little things to make installation an ease. This company has their act together. I have the 12" with the smart controller. Controller is amazing.

My furnace and AC unit are both about 25 years old and the blower isn't strong enough to reach upstairs. It’s probably as strong as blowing from your mouth. The downstairs gets pretty cold though.I wanted to redo all the ductwork in the attic and got an 8” fan but decided it was going to be WAY TOO much work so I went with the 12” instead, where I have easier access in the garage.This probably took about 3 hours to install with no previous knowledge of how to do ductwork. I cut the 12” metal duct with an oscillating tool with a metal blade and also tin snips. I’m not sure if they changed the inlet opening diameters based on other reviews but mine is about 11.75”, perfect to fit the previous 12” ductwork. I cut about 18” of the existing duct to fit the fan. I also bought a 12” flexible duct to connect the top end of the fan to the existing duct. I originally wanted to keep as much existing metal duct as possible and bought some 12” metal couplers but those didn't seem to work. The bottom part of the fan is resting inside the 12” duct and the top part is connected by about 6” of 12” flexible duct.Then, I just used foil tape at both ends of the fan, bottom was existing 12” metal duct to fan and top was fan to flexible duct to metal duct. I still need to add the clamps for extra security.Now my upstairs is blowing air out of the vents like you would expect a new unit to do. I’m currently on level 8/10 and it’s pretty solid, but nothing crazy. I blame the way they did all the wyes. If I actually redid all the attic ductwork I’m sure it would be better.Now if the fan is on level 1-2 downstairs still gets some air but anything higher and the fan is basically taking all that air and pushing it upstairs. We mostly hang out upstairs so getting air downstairs is less of an issue.Currently its 90 degrees outside, before installing the fan, downstairs would probably stay around 73 even with having the AC on for hours. It really wouldn't cool the house but just keep it at a constant temp but upstairs would be closer to 80 and would never cool down. After about running the fan with AC for 30 mins at level 8 today it’s gone from maybe 78 to 74.

The best

This is a great product. I was having some air flow issues in my great room. Not enough air moving through the system to keep the room cool in the summer, although the system was working properly. I had an AC company come out to check my system. They said the problem was the CFM of the blower fan not being high enough to move sufficient air. They wanted $15,000 to install a whole new system with a bigger fan. I bought and installed this unit for about $400. My great room is freezing now. Have to turn the thermostat down to keep it comfortable. Wish I had done this sooner.

If you need to move air around this is the device for you! Very quiet considering the volume of air. Jet engine

Much quiter than stock fans. Could even be put in second bedroom. Free heat for winter

These are good fans, and the controller is a nice feature if you also have the S12 model with it. BUT the problem is that the inlet and outlet openings are NOT compatible with 12 inch duct work of any kind. I called their customer service and they acknowledged the issue but they do not offer a fix. The openings on both ends are closer to 12-1/4" and no 12" duct work or flexible ducts will fit over the outside. And the inside tapers in pretty quickly so you can't insert the duct there either. We had to make a custom solution - we bought some heavy duty rubber sheeting 1/8" thick by 3" wide by 3.5 ft long and used hose clamps around that. Be careful if you do this as many of the 12" hose clamps do not open up large enough to go over the rubber on top of these connections. The ones provided with the fans have extra length and will go over the rubber, but if you buy them separately they may not be big enough. Select them carefully.