Lock Top Chimney Damper

Product Images

Lock Top Damper

Lock Top Damper

Lock Top Damper

Lock Top Damper

Lock Top Damper

Lock Top Damper

Optional Add-Ons

Optional Add-Ons

8x8 Lock Top Damper

8x8 Lock Top Damper

8x13 Lock Top Damper

8x13 Lock Top Damper

8x17 Lock Top Damper

8x17 Lock Top Damper

13x13 Lock Top Damper

13x13 Lock Top Damper

13x17 Lock Top Damper

13x17 Lock Top Damper

17x17 Lock Top Damper

17x17 Lock Top Damper

Description:
The Lock-Top Damper seals out pests and weather problems with its quality built, rigid construction. It is a low cost...

The Lock-Top Damper seals out pests and weather problems with its quality built, rigid construction. It is a low cost solution to replace throat dampers to help prevent heat and air loss. Optional Sweep's Ring!

As low as$318.99

Product Details:

The Lock Top Damper is the perfect solution if you are tired of your cold, drafty wood fireplace. There's no question, old traditional metal fireplace throat dampers tend to be very leaky even when the damper is closed.

Moreover, a traditional masonry fireplace throat damper will leak $200 or more of energy a year on average. The Lock Top Damper is equipped with a silicone gasket under the lid which makes for an extremely tight seal when the damper is closed, saving you money.

Features

Not only will this fix your downdraft concerns for your wood fireplace, but we make it easy to get the installation done. All in all, the hardware is included for an easy installation. Moreover, the only tools you will need to install the damper are a pair of wire cutters, drill, 1/4" masonry drill bit, and a hammer.

Not only is the cable made from heavy duty stainless steel, but also it is capable of withstanding extreme temperatures, it will not burn out. In addition, the base is constructed of heavy duty cast aluminum and the lid is constructed from stainless steel. Whether you are looking for a simple solution, or an affordable solution, the Lock Top Damper is a great choice.

  • 30 ft. stainless steel cable
  • Mounting hardware
  • Adhesive
  • Lifetime Warranty

Operating Your Lock Top Damper

Firstly, mount the Lock Top Chimney Damper on the top of your chimney flue. Secondly, adjust the chain handle to the bracket you mount on the fireplace wall. Finally, lock the cable in the fireplace bracket when you want to close the damper and release the cable from the bracket to allow the damper to spring open when you are ready to have a fire.

Most important, this is intended for use with traditional masonry wood burning fireplaces. In addition, do not use with gas appliances or gas logs.

Note: Do not use Lock Top dampers with gas logs. For example, failure to open the damper with gas logs could result in carbon monoxide in the home. Also, in the event of a gas leak & gas is trapped in the chimney, it could result in an explosion.

Lock Top Damper Sizing:

Firstly, measure the inside of the masonry chimney opening or clay flue. Secondly, compare your measurements to the chart below to find the damper size that will fit.

Size Fits Inside Flue Sizes Height of Open Lid
8" x 8" 6" to 9" Width x 6" to 9" Length 8"
8" x 13" 6" to 9 1/2" Width x 9" to 12 1/2" Length 8 1/2"
8" x 17" 6" to 9" Width x 14" to 17 1/2" Length 7 1/2"
13" x 13" 9" to 12 1/2" Width x 9" to 12 1/2" Length 9"
13" x 17" 9" to 12 1/2" Width x 14" to 17 1/2" Length 7 3/4"
17" x 17" 14" to 17 1/2" Width x 14" to 17 1/2" Length 7 1/4"

Options for Your Lock Top Damper

RS Round Flue Adapter (Optional):

Although Lock-Top Dampers are typically installed to your square or rectangle flue, many chimney flues have round clay tiles, pipes, or solid packed Class A double wall pipes. As a result, the RS Round Adapter is a simple solution for this type of installation.

Firstly, use the RS Round Adapter by simply sliding it inside the round flue opening. Secondly, you will attach the energy-saving Lock-Top damper to the square (top) of the RS adapter.

RS Round Flue Adapter Sizing:

To begin with, select the RS Adapter by the inside diameter of the flue or pipe opening. Another key point, the RS adapters are NOT to be used with Air Cooled Pipes. If you need an Air Cooled Adapter, please contact us for a quote.

Nevertheless, give us a call if you would like help sizing for a RS Adapter.

RS Round Flue Adapter Sizing:

Size Lock-Top Required RS Adapter Size (fits inside dimension of pipe) RS Plate Size
8" x 8" 6" Adapter 9 1/2" x 9 1/2"
8" x 8" 7" Adapter 9 1/2" x 9 1/2"
8" x 8" 8" Adapter 9 1/2" x 9 1/2"
13" x 13" 9" Adapter 12 1/2" x 12 1/2"
13" x 13" 10" Adapter 12 1/2" x 12 1/2"
13" x 13" 11" Adapter 12 1/2" x 12 1/2"
13" x 13" 12" Adapter 12 1/2" x 12 1/2"

Specifications:

Parts Included:

  • 30 ft. cut to fit cable
  • Mounting Adhesive
  • Hardware

Help & Documents:

Installation & Operating Instructions:

How to Install a Lock Top Chimney Damper
Operating Instructions for the Lock Top Chimney Damper

Warranty Information:

The manufacturer, warrants for the purchaser's lifetime that our energy-saving fireplace dampers, when reasonably maintained and used on solid fuel burning chimneys, shall be free from any defects in materials and workmanship. To make a claim under this warranty, contact the professional who sold it to you. Upon approval of your claim, the manufacturer will replace the damper to the professional as your exclusive remedy. The manufacturer will not be liable for any incidental or consequential damages.

Reviews:

Customer Reviews

Based on 2 reviews
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B
Brian Patterson
Lock Top Chimney Cap

Chimney cap and Chimney Sweep base plate came in 2 separate shipments.
Overall a good product but I can no longer close the existing damper as the cable restricts it closing all the way

C
Carlos Weinheimer

Inside dimensions should be stated. Ordered the largest available 17x17, it wouldn’t fit over 16” liner.

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Our 316Ti flexible chimney liner and chimney liner components have passed the rigorous testing at the Underwriters Laboratories with best in class status and are UL Listed. So if you are looking for UL listed chimney liner sold directly to homeowners, then look no further than Rockford Chimney

Customer Testimonials

Back in July you gave me excellent advice re. sizing/purchasing a flue liner for the chimney associated with my wood stove. I'd like to thank you once agai... More

—AE Northfield, MN

A few weeks ago I ordered a chimney liner system for my fireplace insert. Your salesman recommended the liner system plus the insulating blanket. I just wa... More

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Just got around to installing my new smooth flexible liner and deluxe terra cotta cap (wow). The quality of your product is second to none. Very pleased an... More

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Thanks so much for the great tech service from Dennis, very knowledgable, friendly and proffessional.Your website is the best, beats your competition by fa... More

—Bill in Knoxville

Sue and Dennis, I received the final part of my order yesterday (the chimney cap that actually fits over the chimney chase). It looks wonderfu... More

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Hello, I was shopping for an fireplace insert and called RCS to ask why they were so much cheaper than my local guy, the reply was " we sell thousand of th... More

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