Rated 4.3 out of 5 by 8
Rated 5.0 out of 5.0 by Grizzley perfect for my needs
the item is what i was looking for and was able to adapted for my need..
October 18, 2016
Rated 2.0 out of 5.0 by Joey Short-lived motor life. Not a Home Depot off-the-shelf item. On-line purchase.
Worked like a charm, but motor jammed after 2 weeks. Called Suncourt, got a return authorization, and expect a new motor, based on the attention from the phone rep.
September 27, 2016
Rated 4.0 out of 5.0 by Slar Works great, some small tweeks needed
The damper works great. Installed it when adding a new bathroom fan because we get strong canyon winds which would drive me crazy rattling the old vent flap. Now it is nice and quiet!
My attic above the bathroom is accessible so installation was straightforward. Tied it into the line that activates the fan and it opens in a couple of seconds when the fan is turned on.
I did adjust the foam insulation that seals the damper when closed. Out of the box there where gaps between the foam and damper which would have let air and noise through. Pulled up then reinstalled and reglued the foam and it was good to go.
January 19, 2016
Rated 5.0 out of 5.0 by AnKing Perfect product for the price
I bought it to use it with my humidifier & it does exactly what it's suppose to. Now the bypass in my humidifier is only open when needed(humidistat calls for more humidity) & it's also eliminates the need of manually opening & closing the damper when season starts/ends.
Price is more than reasonable
January 26, 2014
Rated 4.0 out of 5.0 by Methodical Beware of binding
As a note, I have only installed three units so far, one to go. None have been functionally tested in the final system yet.
The automated damper seems sturdy and well built. The metal gauge of the body is fairly thick so that it holds its shape well. Tolerances inside are generous so that the flapper has plenty of space and won't bind on the inner surfaces of the body. But... some designer didn't do the tolerances correctly on the bolt which acts as a stop for the flapper. A little bit of distortion in the right direction on the body and the flapper assembly gets push up so that the cast feature which is used to turn the flapper, and the bolt that controls max open and closed positions interferes and the flapper sticks open and won't move.
Careful attention is needed to ensure that assembly does not distort the outer housing causing it to bind and prevent the mechanism from working. To give yourself some extra breathing room, remove the threaded bolt and grind two flats in the threads where is passes nearest the cast component. The two flats should be about 1/2 inch long on opposite sides of the threaded end of the bolt, beginning at the threaded end of the bolt. Re-install the bolt with the flats aligned to increase clearance to the cast component and the bar that the motor operates to engage the cast component.
A picture should accompany this review to show the places for the flats to be ground.
Even if you install it perfectly with no distortion, I'd still grind the flats so that if the system sags or creeps a little over time the cast component does not bind up and negate the reason you installed it.
December 10, 2013
Rated 5.0 out of 5.0 by jimyocum Does what it needs to do, price is acceptable, what's not to like?
Does what it needs to do. Price is acceptable. What's not to like? (I think I came when expected. The metal seemed a bit light-weight, but there is not a lot of strain on this, so that was not an issue. Bottom line, it works.)
May 7, 2015
Rated 4.0 out of 5.0 by Matt Update to: Beware of binding
Now have 4 dampers up and running for several months. They shut off flow to a basement when the blower is turned off so that the basement and the 2nd floor stay the same temperature, no filtering of heat from the basement to the 2nd floor, or cold air down.
Something to watch out for: Each time the dampers open and the small spring is stretched, it makes a little noise. From the first floor it sounds like someone is plucking a violin in the basement. Just enough to make your wife nervous if she is at home alone. This caught us off guard several times and I had to demonstrate it for her so she would relax about the funny noises.
When the dampers close, there is also the soft sound of gears being spun as the spring returns the damper to the closed position and the motor's gearbox spins backward. Not loud, but just enough to put the unsuspecting person on edge. Makes for good jokes about the house being haunted.
August 19, 2014
Rated 5.0 out of 5.0 by redlabel Perfect for my application!
I used this as an automatic damper to my humidifier. No longer do I have to worry about remembering to open the bypass damper in the winter. WOrked great!
December 10, 2013