Wind noise down the chimney can be very annoying. Block it out with a Chimney Balloon - it's like fitting double glazing in your chimney!
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Chimney Balloon 12-in W x 12-in L Plastic Chimney Damper at
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Chimney Balloons
How to stop wind noise down the chimney – Chimney Sheep
The 21×10 Chimney Balloon plugs a rectangular chimney flue that is between 17”x7” to 21”x10”. The handle valve is 7” long. Every Chimney Balloon draft
Chimney Balloon 21x10 Max 2-Ply Inflatable Chimney Pillow Fireplace Draft Stopper, Fireplace Cold Air Blocker, Works Better Than a Chimney Flue Cover