BathroomFanExperts.com > Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct

Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct

Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct

About This Product

MFG: Fantech
MFG#: RSK8
Our#: 112096

Gravity backdraft damper with galvanized steel collar and lightweight aluminum damper blades. Spring loaded for assistance in gravity closure. For optimum performance, damper should be installed in a vertical orientation. For dampers installed in a horizontal position, the hinge should be vertical

Fits 8" Round Duct

A=8
B=3 1/8"

duct connections are 1/8" smaller than duct size
 

 

 

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BathroomFanExperts.com Price:

$21.60

(Regular Price $40.00, You Save $18.40)
Availability: In Stock

REVIEW SNAPSHOT®

by PowerReviews
Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct
 
4.5

(based on 19 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to install (17)

Cons

    Best Uses

    • Kitchen (4)
      • Reviewer Profile:
      • Homeowner (14), Avid do-it-yourselfer (6), Professional (3)

    Reviewed by 19 customers

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    Displaying reviews 1-10

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    5.0

    Excellent product

    By MattK

    from VA

    Verified Buyer

    Pros

    • Easy To Install

    Cons

      Best Uses

        Comments about Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct:

        Replaced a broken damper above my cooktop. This one works better, the springs keep the damper closed so wind doesn't blow down into my kitchen from the vent shaft above.

         
        3.0

        It was what I needed but!

        By Bob

        from Glenville, Pa

        About Me Homeowner

        Verified Buyer

        Pros

        • Easy To Install
        • Fits well

        Cons

        • Not Very Powerful
        • The Spring Was Very Weak

        Best Uses

          Comments about Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct:

          The spring that returns the flaps back to the closed position need to be stronger. Other than that it works great.

           
          5.0

          well built

          By who

          from mo

          About Me Homeowner

          Verified Buyer

          Pros

          • Easy To Install

          Cons

            Best Uses

            • Large Rooms

            Comments about Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct:

            fine

             
            4.0

            Great value

            By DB

            from NC

            Verified Buyer

            Pros

            • Easy To Install
            • Great price

            Cons

              Best Uses

                Comments about Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct:

                Great value. Works just as expected.

                (1 of 1 customers found this review helpful)

                 
                3.0

                Well designed but with one weakness.

                By John

                from Morris Plains, NJ

                Verified Buyer

                Pros

                • Effective Design

                Cons

                • Weak Spring

                Best Uses

                • Bathroom
                • Kitchens

                Comments about Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct:

                I inserted the 8" backdraft damper into my kitchen exhaust fan duct leading to the outside because the original damper was missing and replacement parts for it could not be found. The design of the Fantech RSK8 spring-loaded backdraft damper was effective and kept the outside air from coming into the kitchen through the duct.

                My only complaint with the product is the weakness of the spring that is built into the product. The slightest change in position of the center rod that holds the two blades together offered enough resistance to keep the blades from closing securely. I corrected the problem myself by stretching an additional spring across the diameter of the blades and attaching the ends of the spring at 9 o'clock and 3 o'clock.

                The bottom line is that I would recommend this product to a friend because apart from its weakness (which I can correct) it works effectively and efficiently. I would have given this product a better rating if it had come with a more powerful spring.

                 
                5.0

                Good pricing

                By David Redick

                from Rochester, NY

                About Me Maintenance Director

                Verified Buyer

                Pros

                • Easy To Install
                • Good price

                Cons

                  Best Uses

                    Comments about Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct:

                    Used to prevent back draft into ductwork lines when air supply is down. (Keeps smoke from entering ductwork during a fire when the Air Handling Units shut down.)

                     
                    5.0

                    Just what I was looking for

                    By Road Runner

                    from Allenton, MI

                    About Me Handyman

                    Verified Buyer

                    Pros

                    • Easy To Install

                    Cons

                    • Energy Inefficient

                    Best Uses

                    • Smaller Rooms

                    Comments about Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct:

                    Needed this from a local supplier and they had to special order. [...]Thanks.

                    (2 of 2 customers found this review helpful)

                     
                    5.0

                    Backdraft Damper

                    By Dennis

                    from Fairborn, OH

                    About Me Handyman, Homeowner, Professional

                    Verified Buyer

                    Pros

                    • Easy To Install
                    • Excellent Design

                    Cons

                    • None

                    Best Uses

                    • Collector Boxes

                    Comments about Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct:

                    This product is being used as a 'diode' to prevent air from a common exhaust duct from entering spaces where it does not belong. I was designing one and saw this in the catalog, and it was exactly what I had sketched. Theirs was better - I didn't have to make it! Perfect fit in the ductwork, perfect rubber seal on the butterfly flaps. Caveat - install it LEVEL with the flap hinge pointing up. Unless you have air pressure to spare. It will tolerate a small angle from vertical, but too much may cause the flaps to hang.

                     
                    5.0

                    THIS IS A MUST

                    By DRU

                    from Erie, Pa.

                    About Me Handyman, Homeowner

                    Verified Buyer

                    Pros

                    • Easy To Install

                    Cons

                      Best Uses

                        Comments about Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct:

                        If you are going to use an inline fan then you must use this to eliminate drafts coming back thru the fan. It works perfect

                         
                        5.0

                        Better than expected

                        By DK

                        from WIlmington, NC

                        About Me Homeowner

                        Verified Buyer

                        Pros

                        • Easy To Install
                        • High quality

                        Cons

                          Best Uses

                            Comments about Fantech RSK8 Spring Loaded Backdraft Damper for 8" Duct:

                            I will be using this in the attic with a Fantech FG8XL for stove top exhaust ventilation. Tried in on the fan before installation. It's heavy duty, good rubber seal, smooth operation. The thin light weight improvement store components can't even compare.

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