Chimney Fireplace Dampers

An old throat damper leaks conditioned air straight up the flue. A modern top-sealing chimney damper mounts at the top of the flue and creates an airtight seal, cutting energy loss dramatically compared to a traditional metal-on-metal throat damper. Choose from lock-top, Lock Top II, and Lyemance designs to match your chimney and flue shape.

Upgrade Your Damper, Stop Wasting Money

Installing a top-sealing chimney damper is one of the smartest upgrades you can make for your home. The benefits are immediate:

  • Slash Your Energy Bills: Drastically reduce winter heat loss and summer cooling loss, saving you significant money year-round.
  • Eliminate Downdrafts: Put an end to cold air rushing down your chimney on windy days.
  • Keep Pests & Water Out: The tight silicone rubber gasket provides a weatherproof seal that keeps animals, rain, and snow out of your chimney.
  • Prevent Chimney Damage: By blocking moisture, you prevent unwelcome odors and the long-term deterioration of your chimney's bricks and mortar.
  • Easy to Use: All our models open and close effortlessly with a handle mounted conveniently in your firebox.

Our Top-Selling Models:

  • The Lyemance Damper: Known for its low-profile, cast-aluminum construction, this damper is a fantastic choice if you already have a chimney cap or plan to install one over it.
  • The Lock-Top Damper: This model features a stainless steel lid and a cast-aluminum frame, using a silicone rubber gasket to create a powerful, locked-tight seal against the elements.
  • The Lock-Top II Damper & Cap: The ultimate all-in-one solution. This unit combines the energy-saving features of the Lock-Top damper with a built-in Gelco chimney cap, offering complete protection from energy loss, weather, and animals.

Your Satisfaction, Guaranteed

When you shop with ChimneyDirect.com, you get more than just a high-quality product. You get peace of mind.

  • Fast, Free Shipping: Most orders over $100 ship for free on the same business day.
  • 30-Day Money-Back Guarantee: We stand behind our products with a commitment to your complete satisfaction.
  • Durable Construction: All our dampers are built from high-quality materials designed to withstand the harshest weather for years to come.