AC Infinity CLOUDLINE PRO T12, Quiet 300mm Inline Duct Fan with Temperature Humidity VPD Controller WiFi Integrated App Control Ventilation Exhaust Fan for Heating Cooling Grow Tent Hydroponic 12-Inch

Build quality is perfect

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.

I’ve owned my house over 28 years and have always had problems with the 2nd floor being too hot. I just installed this cloudline 12” fan and for the first time in 28 years the 2nd floor is colder than the 1st floor. That is at speed 6 out of 10 so I would be able to make it even colder. I have to lower the fan speed to equalize 1st and 2nd floor. I love this fan and its controls. It can be controlled many different ways by way of the control pad or app.

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.

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.

Moves lots of air on high, very quiet under speed setting 5. Fan feeds air to a 10 inch duct on speed setting 10 it lifted the blew the registers out of the floor. Fan is set to turn on and off with the HVAC on speed setting 3. Works great easy to set up.