Lock Top Damper

The Lock-Top Damper combines services, experience, and expertise to offer unparalleled results in savings money, time, and frustration in chimney energy conservation. It is designed to lock bad weather, pests, and unconditioned air outside, and keep clean, conditioned air inside. Lock-Top dampers is the low cost solution to replacing rusted, worn-out, energy leaking throat dampers and can dramatically reduce noise from outside due to the top sealing cap. A cable extends from the cap to the firebox below and fastens with a hook. Simply release the cable and your chimney cap opens with a safety device that lock it open in the case of a chimney fire.

Some of the best qualities of having a Lock-Top Damper

  • Lifetime warranty.
  • Hurricane Proof by its low tight seal to the top of your flue.
  • Energy Efficient.
  • Seals out Pests.
  • Seals out all wet conditions when closed.
  • Easy to Open and Close.
  • Serves as a chimney cap.
  • Non-Restrictive – will not inhibit draw.
  • Constructed of cast aluminum, with stainless steel cap, and spring wires.

The Lock-Top Damper is designed to stop cold air from coming down the flue, and air conditioned from escaping. Let us help you save money today. We can install a new Energy Efficient Lock-Top Damper. Check the chart to see the savings by having one installed by the Fireplace Doctor.

Size of Home 1000 Sq.Ft.


2000 Sq.Ft.


3000 Sq.Ft.


4000 Sq.Ft.


5000 Sq.Ft.


Estimated Yearly Cost to Heat and Cool Home, Directly Below
$986 $1450 $1700 $2200 $3200
Dollars saved as a Result of Installing an Efficient Top Mount Chimney Damper
10% Damper Leakage $98.60 $145 $170 $400 $500
20% Damper Leakage $197.20 $290 $340 $800 $1000
30% Damper Leakage $295.80 $435 $510 $1200 $1500



To learn more, visit manufacturers site at… HomeSaver.

If you’re looking for a lock top damper then give us a call today at 1-888-565-0124 or email us.