QuietcoolQC ES-1500 Energy Saver Advanced Whole House Fan - 1434 CFM - 65 watts - Covers up to 717 SQFT - 10 Year Warranty - Removable Grille - R5 Insulated Dampers - 20ft Power Cord

I installed the QuietCool QC ES-7000 in my home. Overall, and so far, I believe this is an excellent product. I installed the fan in my 2nd story walk-in attic along with their RF wireless control module (IT-36002). I’ll start with some pros and cons, then relate some tips based on my installation experience.Pros:This fan moves a ton of air. In fact, on the high setting, it will disturb anything lightweight like a piece of paper anywhere in the pathway of air movement. I made the mistake of starting the fan prior to opening any windows or doors, and it literally sucked the soot out of my fireplace at the other end of the house. The fan is also as quiet as I expected it could be.The product is obviously very well-made. They have put a lot of thought into the design and their attention to detail is quite good. My only issue with the product is that when I unboxed it and tested it for the first time the fan blade rubbed against the fan hand guard. I suspect this was the result of shipping, and all I had to do was manually bend the fan hand guard away from the fan housing with my hand to remove the rub.The user manual is very well written and contains many tips that are clearly based on real customer experience and feedback given to the manufacture. Their YouTube videos are good as well.Cons:The fan housing assembly is quite heavy and may be too difficult for the average homeowner to install as a one person job (which is what I did). I recommend two people for this task, at least for the portion of the job that requires hanging the fan assembly from the rafters by its metal straps.The user interface of the RF wireless control is clunky. Setting the timer and the fan speeds is not very intuitive and they could’ve done a better job with the user interface here. I really wish they had a Wi-Fi enabled module that would allow me to control the fan from my iPhone rather than via a special purpose, dedicated remote control.There were a few extra small parts that came without explanation. For example, two white screw assemblies that I believe are meant for use in a window in some fashion but there was no mention of this in the user manual or the YouTube videos. Not a big deal.The frame for the ceiling grill would benefit from being slightly wider so that the screw holes used to attach it to the ceiling would be sure to hit joists that are 16 inches on center. I had to install screws at an angle on one side of the ceiling grille frame in order to catch the joist on that side.A few tips:If you install the RF wireless control hub, you may find the screw holes on the plastic hub housing do not align well with the screw holes in the fan housing; they are not quite the same spacing as with the metal electrical box that came mounted on the fan. With a little manipulation, however, you can get the screws to catch their holes.When you attach the nylon strapping they provide to help support the duct in the attic, make sure you triple-up or quadruple-up the nylon before you screw it into a rafter, otherwise the nylon will likely tear.Because you will likely remove the ducting from the damper box during installation, once installation is complete I recommend using metal tape to seal the ducting to the damper box. This is the same metal tape the manufacturer uses to seal the ducting to the fan housing.Finally, as I mentioned before, if you run the fan on high be sure to have windows and doors open prior to starting the fan. Otherwise, you may find things moving in your house that you would prefer not move…😁

This system is amazingly quiet and very powerful! it moves a lot of air! It will be a great addition to the house in spring and summer when the mornings and nights are cool enough to open up the house. I can barely hear it standing below the system, no kidding. I installed the wireless control system, which is adequate. I would prefer something that is more "connected", like through my home automation or even Alexa. There is no App for this system.Install video is a short 2 minute list of the steps you need to take to install it properly. It was recorded in a perfect set (not an attic) with lots of light and clearance, available power, and a flat floor, all of which don't exist in the real world. Keep that in mind. I had to move electrical and ducting to make it fit where I wanted it installed. I also framed in the intake box, instead of simply attaching to one side of one truss. Also, I happened to have a 20Amp line that I could easily pull into the attic and use for this system, otherwise I would have had to calculate expected loads on other circuits available to me in the attic and use one with an expected low load. I did the install myself. This system is heavy, so I did take it apart to get it in the attic. Pay careful attention while doing this because when you try to put it back together in the attic it could take a bit of time. I had already installed the intake box to the ceiling before realizing it was all but impossible to reinstall the duct to it, so I had to remove the box and work with trying to reconnect it to the duct, while standing on the trusses with only adequate light. Just that took about 30 minutes. Could have done it much quicker on a flat floor with lots of light (like the install video). Everything would be much easier if you can convince someone to go into the attic with you...All that said, I really am impressed with this system and can't wait to use it when it warms up here.

The install videos always show a 6 foot high attic where you can stand up and walk around. Our attic is about 4 feet high, and wrangling a 2 foot diameter duct that's 8 feet long up there was quite the task, especially clamping it on to the motor. Now that it's installed, this thing is amazing. I bought the RF switch, which made install a bit easier as it eliminates most of the wiring. There's a yellow wire in the motor wire harness that is cut short, and not brought into the junction box. This is for the medium speed, the motor nameplate even shows it's a 3 speed motor. I connected it to the RF switch and have 3 speeds. Best to wire up the yellow wire before installing the duct, since you can't reach it though the other side of the fan without removing the grill. I couldn't be happier with how the system is built, install was difficult, but there were lots of things in the design that made it easier The duct has a wide metal strap with a locking toggle clamp on both ends. The cardboard template works well. The flanges on the damper box were easy to remove if screwing directly into studs. I really liked the motor hanger design, I moved the motor around the attic several times and this made it easy. Using each strap to incrementally lift the motor also helps, as your arm only has to lift half the load with the other strap carrying some of the weight. I did have a little rattle, so I used some fender washers and extra screws though the motor hangers to clamp them down tight against the rafters.