Flueblocker for 12" x 12" Square Chimney Flue, Replacement Fireplace Draft Stopper

Keep your home warm and odor-free by installing this square fireplace draft stopper by Flueblocker. This dense wool pad seals and insulates the fireplace or wood stove chimney, working when you push it into the narrow part of the chimney above the firebox, with or without a damper. It contours into the shape of the chimney flue and holds itself in place with a pressure fit. The fireplace flue blocker helps eliminate drafts, bad chimney smells and debris, and moderate exterior noise by creating an air barrier. It comprises 100% Herdwick wool in England, making it durable enough to handle multiple uses. For a proper fit in small openings, use scissors to trim the pad, which has an actual size of 13" x 13". Easy to install, use the included handle and extension to push the wool pad into the narrow part of the flue, then tug it down gently to ensure a good fit. To stay safe, remove or disable any active vented gas log and ensure any fire is out before using the Flueblocker, then remove this chimney flue stopper before lighting the fireplace again.