Top Mount Dampers


  • Non-Restrictive—will not inhibit draw
  • Keeps out mammals, birds and insects
  • Easy to open and close from inside the firebox
  • Made of cast-aluminum and stainless steel
  • Replaces leaky throat dampers
  • Serves as a chimney cap when open
  • Prevents heat and air conditioning loss
  1. Is your home older? It may not have a damper assembly.
  2. Is the damper blade missing or damaged?
  3. Do you feel cold air coming down your chimney in the winter or get a smoky smell in the summer?

energy5If you answered YES to any of the above questions, a Top Mount Damper may be what you need solve your problem.

A Top Mount Damper is installed on top of your chimney flue. It locks shut, keeping your fireplace warm, dry and secure, and it is a low-cost solution to replacing rusted, worn-out throat dampers. It reduces the load on heat and air-conditioners and dramatically reduces noise from the outside.

Top Mount Damper    Shown in Open position

Top Mount Damper
Shown in Open position

Fireplace performance improves, and cleaner burns reduce pollution. We have installed many Top Mount Dampers and have gotten great results. Modern houses are more weathertight with better sealing around doors and windows. Clothes dryers, bathroom vent fans, and range hoods all pull air out of your home, creating negative pressure inside your home. The easiest place for outside air to enter is down the chimney.

Top Mount Damper Shown in Closed position

Top Mount Damper
Shown in Closed position

That smoky smell is coming from the chimney along with the cold air. A Top Mount Damper is made to seal the chimney at the top to help prevent air from entering. This helps make the area around the fireplace more comfortable and reduces smells.

Installation of Top Mount Dampers is generally $45.00-65.00 (Raleigh, NC-area only).
Call Chimney Keepers at 919-772-8110 for more information.

Each damper kit comes with a 50-ft. stainless steel cable, chimney top adhesive, mounting bracket for the firebox and lifetime warranty to the original owner.

Spider Dampers are used for prefab or metal pipe chimneys.

Top Mount Dampers

Shipping is $11.95 each in U.S. (extra for Alaska and Hawaii).

Item # Size Price
ET813 9″x13″ 295.00
ET1313 13″x13″(12×12) 315.00
ET1318 13″x18″(12×17) 335.00
ET1818 18″x18″(17×17) 385.00

Fits Flue Sizes (inches)

Item # Min size Max size
ET1313 9×9 12.5×12.5
ET1317 9×14 12.5×17.5
ET813 6×9 9.5×12.5
ET88 6×6 9.5×9.5

Other sizes are available. For more information, email with the size you need and your zip code.  Top mount dampers may be a different brand than shown on the website, according to availability of product. It is functionally the same product.

Have a round flue?

The RS Adapter allows the Energy Top damper to be installed on a chimney with a round flue liner. (NOT for pre-fabs! See below.)   To order, call (919) 772-8110 or email

Please put Adapter size needed in the comments box at the check out page. Shipping is only $9.95 on RS Adapter kits in U.S. (extra for Alaska and Hawaii).

RS adaptor for pipe size Lock Top size Buy Now
6″, 7″,8′ LT 8×8 Total $45.00
9″, 10″, 11″, 12″ LT 13×13 Total $65.00

Note: These dampers are specifically designed for woodburning masonry fireplace flues and should not be used on flues servicing wood or coal stoves or on fireplaces serving gas logs. Spider dampers are used on pre-fab fireplace chimneys.


  • Passing the Hat


    Karen and Carl Newton


    Sarah and Will Gilfillan

    Owning and operating Chimney Keepers for 27 years has been a very rewarding experience, and we have enjoyed the relationships we have built with our customers. We are now starting a new chapter and are selling the business to one of our Technicians. Though we will miss the many relationships and friendships we have built over the years, Karen and I are looking forward to traveling full time in our Airstream as we explore the nooks and crannies of North America.

    We would like to take this opportunity to introduce you to Will and Sarah Gilfillan, who will be taking over Chimney Keepers as of March 30, 2020. Rest assured, Will has been well trained (by Carl!) and is very competent, with nearly four years of experience in the gas log/fireplace/ chimney service industry and over ten years as a firefighter. Sarah, the Office Manager/wife is a fast learner, and will do wonders in assisting you with scheduling appointments and answering questions. It was important to us to find a good fit for our customers, and we feel confident that you will find Will and Sarah to be knowledgeable and a pleasure to work with.

    Thank you for your business over the years. It was my distinct pleasure to have been of service to you, and I wish you continued success and prosperity in the years to come.

    Sincerely, Karen and Carl Newton

  • Is Your Wood-burning or Gas-burning Fireplaces ready for Winter?

    Is your Fireplace or Gas Log unit ready to go? If not, or for a service, give us a call.

    During a power outage, a fireplace or gas log unit may be your only form of heat, so make sure they are working in top form. Give us a call to set up an appointment, 919-772-8110.

    PS: If you do NOT have a Carbon Monoxide detector and you have gas logs, GET ONE… NOW… We recommend the combination CO/Smoke, battery-powered, detectors found at Lowe’s, Home Depot, or most hardware stores.

    If yours are over 10 years old, replace them (there’s a date on back). If there is not a date of manufacture on the back, GET rid of it.

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