Seal Tight


Four Season Protection
Save on Utility Costs

Top Damper

The Top Damper effectively seals in "paid" energy dollars. It mounts to the chimney top and seals with a flat rubber gasket when closed. The Top Damper is constructed of premium stainless steel and cast-aluminum and won't rust like conventional cast-iron dampers. The control mounts in the firebox for quick and easy access and defaults to the open position. Heat loss up the fireplace chimney accounts for an average 8% of your home heating costs! The Top Damper helps prevent this heat loss. Stay

The SEAL TIGHT damper is a low-profile top mounted damper that also serves as a chimney cap. This makes it ideal for historic homes where a chimney cap might affect its aesthetic appeal.
Heat loss up the fireplace chimney accounts for an average 8% of your home heating costs! Seal Tight Dampers help prevent this heat loss. Stay warmer and save money!

  • Four Season Protection for your chimney.
  • Precision engineered mechanism is easier to open and close than similar style dampers
  • Serves as a chimney cap when closed.
  • Doesn’t require a fire safety control
  • Easily accessible handle mounts inside of fireplace
  • Defaults to open position for maximum safety
  • Two types of gaskets making it superior to similar dampers
  • Lifetime Warranty

SEAL TIGHT Chimney Dampers are made for use only with open woodburning masonry fireplace chimneys and are NOT suitable for use in the following types of installations:

  • Don’t use on chimneys serving vented gas logs. Vented gas logs require the fireplace damper to be removed completely or fixed to a permanently open position; this is to assure that soot, fumes and carbon monoxide do not enter your home.
  • Use only on vent-free gas logs if approved by the appliance manufacturer and the local authority having jurisdiction. However, we don’t recommend it because the moisture generated from the gas logs could damage the chimney structure.
  • Don’t use on chimneys serving other fuels, wood stoves or other appliances such as inserts, furnaces, etc.


SEAL TIGHT Dampers can be installed by homeowners who feel comfortable working on a roof, but U.S. Fireplace Products, Inc. strongly recommends you use the services of a qualified chimney sweep who can also inspect your chimney and provide other valuable home safety services.

The SEAL TIGHT damper attaches to the top of the flue tile on fireplace chimneys. Our models are sized by common flue tiles and available in 7 Sizes:

8″ X 8″ Fits inside flue from 6-3/4″ X 6-3/4″ up to 9″ X 9″
8″ X 17″ Fits inside flue from 6-1/4″ X 14-1/2″ up to 8-3/4″ X 16-3/4″
9″ X 13″ Fits inside flue from 6-1/2″ X 10-1/2″ up to 9″ X 12-3/4″
12″ X 16″ Fits inside flue from 9-1/4″ X 13″ up to 11-3/4″ X 15-1/2″
13″ X 13″ Fits inside flue from 10-1/8″ X 10-1/8″ up to 12-3/4″ X 12-3/4″
13″ X 18″ Fits inside flue from 9-5/8″ X 15″ up to 12-3/4″ X 17-1/2″
18″ X 18″ Fits inside flue from 15″ X 15″ up to 17-3/4″ X 17-3/4″


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