How do I determine the correct size for my fireplace flue?

Measure your flue's interior and choose a Flueblocker the same size or slightly larger. The wool pad pressure-fits and can be trimmed with scissors. Use the sizing guide to match your flue shape—round, square, or rectangular.

How difficult is installation? Do I need any special tools or supports?

Choose an install spot you can reach by hand. Measure with a tape or ruler. A narrow area above the firebox is ideal. For higher spots, use 6” handle extenders to place the wool pad securely.

Will the product completely block cold drafts, odors, and heat loss?

When fitted correctly, the FlueBlocker stops heating/cooling loss, drafts and odors from a dormant chimney. To eliminate odor, make sure you vacuum out all the ash from the firebox and seal any ash chute or outside intake attached to the firebox.

Which is right for my situation – a FlueBlocker or a Chimney Balloon?

The Flueblocker is a durable, reusable chimney plug that handles moisture and is ideal for long-term use. The Chimney Balloon offers a tight seal and a breakaway feature for safety if a fire is lit accidentally.

How durable is the material? Is it worth the price?

Chimney is harsh, moist, acidic environments. The Flueblocker uses coarse ionized Herdwick wool and durable resin hardware to seal air, wick moisture and resist odors. Chimney Balloons use a heat-reactive laminate to withstand chimney air conditions.

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Flueblocker for a 16"x16" Chimney - Draft Stopper Wool Fireplace Plug

Flueblocker for a 16"x16" Chimney - Draft Stopper Wool Fireplace Plug

Product ID: 444783222

Details

Brand
Flueblocker
Color
Gray
Item Weight
1.4 pounds
Material
Wool
Product Dimensions
18"W x 1"H

🐑100% natural Herdwick wool for durability

📏Fits 13-17 inch flues perfectly

✂️Customizable trim-to-fit design

R6089

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In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🔥 Stop drafts, save energy, and cozy up smarter! 🐑

ECO FRIENDLY DURABLE - Made from renewable, rigid Herdwick wool imported from England
EFFORTLESS INSTALLATION - No tools or fuss—just insert and remove as needed
SEAL OUT DRAFTS ODORS - Pressure-fits snugly to block cold air and unwanted smells
ENERGY SAVINGS YOU CAN FEEL - Keeps warm air in, reducing heating costs in one season
BETTER THAN BALLOONS PILLOWS - No deflating or puncturing—long-lasting draft stopper

The Flueblocker for 16"x16" square chimney flues is a premium, pressure-fit draft stopper made from 100% natural Herdwick wool. Designed to fit flues between 13" and 17", it blocks drafts, odors, noise, and debris, improving home warmth and energy efficiency. Easy to install and remove, it outperforms inflatable alternatives and pays for itself in energy savings within one heating season.

Specifications

ASIN	B0B342K3WG
Best Sellers Rank	#612,256 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #412 in Fireplace Replacement Parts
Brand Name	Flueblocker
Color	Gray
Customer Reviews	4.4 4.4 out of 5 stars (12)
Global Trade Identification Number	00852586007313
Item Dimensions W x H	18"W x 1"H
Item Weight	1.4 pounds
Manufacturer	Chimney Sheep
Manufacturer Part Number	FB16X16SQ
Material Type	Wool
Model Number	FB16X16SQ
Number of Items	1
Unit Count	1 Count

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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Very impressed with the quality and fast delivery. Will shop here again.

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3 weeks ago

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R6089

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Fantastic experience overall. Will recommend to friends and family.

1 month ago

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