The best fireplace blocker will help you enjoy your fireplace without cold drafts coming into your home at night – and without the associated high energy bills. There are two main ways to block up a fireplace effectively: by blocking off the fireplace or by blocking up the chimney itself. We have options for both fireplace-blocking methods.
Fireplace Blocker 32-inch blanket
Our top pick for ease of use
Get your fireplace all cozy with this easy blanket by Fireplace Blocker.
Pros:
- Fire resistant
- Easy to install
- Blocks drafts effectively
Cons:
- Could do with more magnets
The Fireplace fireplace blocker blanket is made from a fire-resistant pavenex fabric and is very easy to attach to your fireplace screen with the magnets provided. This really does block off a cold breeze very efficiently, and although no blocker will eliminate all drafts 100 percent, this comes pretty close. The only drawback is that this design only has six magnets, which is probably why it doesn't always block off all the cold air coming in.
Flueblocker 9-inch round chimney flue blocker
The best natural chimney plug
This flue stopper is made from wool and is very easy to use.
Pros:
- Easy to use
- Natural material
- Multiple diameters available
Cons:
- Won't stop the draft 100 percent
The Flueblocker is a compact and easy-to-use alternative to blankets and screens – you simply push it up the flue to stop the draft coming in. It's made from pressed wool and will last a long time. You might find it easier to push it so it's centered with your hands rather than the handle. Also, like other fire blockers, this one won't stop drafts completely but will reduce them significantly.
Plow & Hearth medium pavenex fireplace blanket
Easy-adhesion design
This superb magnetic blanket will keep your lounge warm and draft-free.
Pros:
- Lighter weight, ribbed fabric
- Easy adhesion with magnets
Cons:
- Might not make a difference if you live in a very cold climate
Another blanket option on our list, the Plow & Hearth fireplace blanket is made from a lightweight material that's very easy to attach to your screen with the magnets provided. Despite being light, you'll be surprised by how well it keeps out the cold air, making a significant difference to the temperature in your room. Having said that, if it's very cold outside, it might not make enough of a difference, but no fireplace blanket will.
Flueblocker square chimney sheep plug
The best wool fireblocker in a square shape
This flue stopper will prevents drafts and odors and is all natural.
Pros:
- Block odors and sounds as well as drafts
- Can be trimmed to size with scissors
Cons
- Only comes in one size
A godsend for square or rectangular chimneys, this Flueblocker 12"x12" Square Chimney Sheep Plug is made from double layered wool and is effective at blocking out noise and unpleasant smells as well as drafts. It only comes in one size, but you can trim it with household scissors to your desired size for the right fit.
Our verdict
Why you can trust Real Homes Our expert reviewers spend hours testing and comparing products and services so you can choose the best for you. Find out more about how we test.
The Fireplace Blocker 32-inch blanket will easily attach to your metal fireplace screen and deliver protection from cold air. If you want an all-natural option, go for the Flueblocker 9-inch round chimney flue blocker, which is made from wool.
Why trust us?
At Real Homes, we recommend the best products to enhance your life. As expert curators, we handpick products based on quality and usefulness to positively impact your day-to-day, from cart to doorstep. We take our responsibility seriously — testing products, reading reviews, and sourcing knowledgeable outlets to ensure our selections are worthy of your time and money. We deliver detailed product overviews, balancing objective information with subjective opinions, so making the best choice for your home and lifestyle is as easy as possible.