CLOUDLINE PRO T10, Quiet 10” Inline Duct Fan with Temperature Humidity VPD Controller, WiFi Integrated App Control - Ventilation Exhaust Fan for Heating Cooling, Grow Tents, Hydroponics

I had been on a hunt for low power high CFM fan. I researched on centrifugal fans, mixed flow fans, EC fans. Giving the power consumption and features I settled with this one. Packaging was impressive and the parts themselves reek of quality. DC fan with Dual ball bearing fans are a welcome :). Parts included are; thermostat-controller console, temperature sensor probe, power brick, fan unit, 2 x ducting clamps The fan itself is much lighter compared to other AC fans (not surprising given the fact that power delivery is through a brick) Operation was fairly straightforward once you get used to controls on the thermostat/controller console. I have been using two of these (intake+exhaust) to cool off a mining rig and I am quite content with the performance. I have tried Active Air 6" centrifugal fan rated at 400 CFM. Though being a quality product, was too loud and consumed 105 watts. These are rated at 350 CFM at 40W with added benefit of thermostat control - smart operation. The fans are tad loud at high speed (speed 5-6) but not even close to other fans out there. Speed 1-4 are quiet for my taste. Following are the numbers captured from my test (see image below), CFM measured by converting from Ft/min unit measured by UT363 power consumption measured at the wall using Kill-A-Watt meter Noise captured using a cellphone app measured 3ft away from the fan (probably unreliable but you get the relative idea; active air used to be 85dB+ on this app) Electricity savings per month (considering 10 cents per unit) 40w vs 100w $3 vs $7.2. That's a $4 saving in a month from a single fan. Much more with when the speeds are lower and automatically controlled using thermostat-smart operation. Other thoughts Since this is a mixed flow fan it might not be good to have lots of bends in your ducting. For long ducts with bends, centrifugal fans are much more effective. My exhaust fan didn't suffer from reduced CFM due to bend when I ran it through a 6ft 6" ducting. CFM on intake end reduced by 40% because of filter. (YMMV) Warranty could have been at least 3 years because in comparison others do provide 3,5 or even 10 years (Vortex). However, arguably there are more points of failure for this unit.

I am writing this review for two reasons. The first reason is the Cloudline T4 fan unit itself, and AC Infinity's awesome customer service. The second reason is the title of the review. I am not using this in a grow room, but in an encapsulated crawl space as an exhaust fan. This fan is outstanding. It was easy to install and setup. For my use, I just have it strapped to a short cinder block and sitting on the floor of my crawl space. I have a Vivosun duct cover over the intake, as the intake is not connected to anything, and I didn't need a carbon filter for my application. I then have the AC Infinity 8' ducting connected to the hard duct that exhausts to the outside. My Fantech FR-100 was pulling way too much air, causing too much negative pressure in my townhome, and causing too much noise, mainly from bad mounting and thus vibration noise. The FR-100 was literally shoved into the hard duct, sheet metal screwed on, and then duct taped. Basically, just hanging there off of the hard metal duct. Anyway, I was wanting to know the CFM ratings per fan speed settings, and AC Infinity support was awesome, quick, friendly, and got me that information fast through their chat. The other issue I had, was the FR-100 was way too close to the inside floor intake vent, about 5' away. This made for uneven temps in my crawl space due to lack of air circulation. Air pulled into the crawl space and exhausted right out. With the T4 and ducting, I was able to place the fan much further from the intake making air circulation better and thus I now have more even crawl space temps. My crawl space is small, about 250 ft, and per code, only needs about 5 CFM. Setting 1 is about 45 CFM, and I am currently set on level 4, about 100 CFM. This in part due to the dust cover lowering the actual CFM and a backflow air valve on the intake from the house. I need to create enough pressure to make sure the valve opens and I was testing a few things. I will like lower the level to 2 eventually. Anyway, this Cloudline T4 fan, is truly whisper quiet. At 10, I am sure there is some noise, but in testing up close, from levels 1 to 6, you could barely hear it at 4 - 6. Overall, I am super impressed with the Cloudline T4 and its smart controller (which I will be upgrading to the WiFi model).

Bought this to help balance out a poorly ducted HVAC system in my home. Installed it in a section of duct with the probe dropped in the intake side. I’m set upper and lower temp thresholds and it comes on within 44 seconds of the HVAC cycling on and shuts down about 2 mins after cycling off. Set the fan speed to 4. Anything above that creates a noise that becomes noticeable. However, 4 is plenty to move lots of air to the side of the house that is difficult to hear a cool. Works great and has changed the comfort of my entire house. Relatively cheap and easy solution to a problem most people would dread fixing.

After using for one season, I have to say I am impressed! I paired this fan up with the CloudForge T3, and between the two I had a utopia in my tent 24 seven! The AI works great. You just have to set your limits for the units you are using. Example, I ran the fan with a max level of six and the humidifier with a max level of three. Everything was perfect.

What can I say,the best of the best

La base per un sistema affidabile, scalabile a piacimento anche con luci di marca diversa, meglio la versione a 6 porte. Acquista pratica con l'app android va benissimo. Consigliatissimo

This a super quite fan.The controller has a bluetooth smart phone App which works faultlessly.There is also a long power cord. The controller can power two fans simultaneously. Bought a cheaper fan first which was noisy & returned. The fan works best with hard plastic ducting as this carries virtually no sound compared to flexible ducting. On full speed the fan is barely audible.The only sound coming from the two intakes I have drawing air.I have the fan exhausting through an external wall duct which also reduces noise. Excellent fan, highly recommended.

Do not cheap out on fans. Buy one of these. I've got a handful of cheap ebay fans in a pile in the garage and none come even remotely close to the cloudlines. You get what you pay for and these are an absolute testament to that. I've purchased 4 of the AC Infinity products now in varying sizes and every single product is a 10/10 including all the adapters/fittings they sell.

Well built fan, great controller, unfortunately the fan is ridiculously loud on settings 6 to 10. Twice as loud as my old can fan and doesn't move as much air.