Flueblocker 12"x12" Square Wool Draft Stopper for Wood Fireplaces, Chimney Sheep Plug Damper Draught Excluder

Easy to put in and out. Seals securely. A great product.

Nice quality and seems to be doing the job.

I have no damper so I've kept the ugly brass and glass doors that were on the fireplace when we moved in. I finally took the doors off and decided to just block up the fireplace with foam sheeting. That didn't work so I researched other options and found the Flublocker. Very easy to install. We've had single digit temps recently and every time I've put my hand in the fireplace to see if I can feel any cold air I find it's the same temperature as the living room.

We bought this to stop wasps from coming down the open chimney flue in our unfinished basement. It did an admirable job of that, but we have also observed that the basement is noticeably warmer with the plug installed. A little pricey for what it is, but an excellent product.

I installed this in the chimney as directed and it stays perfectly. I love the "no fire" warning key chain that I have on the tools next to the fireplace to alert anyone who may make a fire that it is in there. The only down side is that it is very messy. Thank you!

Would have sent it back if I could. Did not correct problem. Smell still coming out of fireplace with this insert. Very disappointed

We just shoved it up the chimney stack. No muss no fuss, but make sure you wear safety goggles, lots of chimney smuts raining down on us.

When I want to use the fireplace or I finished using the fireplace it is a bit if a pain. Ashes rain down my head and I get all filthy. Wasn’t the proper size either.

Extremely flimsy. Bought it to use in an 11" x 11", but it won't even stay in.

Chimney Sheep: First job, clean the flu. You will get dirty and protect your eyes. Measure the flu. Not as easy as it sounds, the narrowest part may be further up than you thought.. Mine was 9 × 12 ins. Ordered the 13 × 13 sheep, it fitted well with a bit of fiddling. The results are very good. Less air going up the flu and I believe it has made the room quieter Not cheap, but does the job.

Non credevo ma ho risolto tantissimo in termini di dispersione di calore, è anche un ottimo prodotto dal punto di vista qualitativo (è un peccato che si sporchi di fuliggine!)

Parfait

This is a complete game-changer for me!!! I just replaced an old gas fire with the fake stones that sat inside my fireplace... I reckon half the heat went up the chimney. It never really heated the room that well. I recently bought a flueless gas fire, a mock Wood burner. (not cheap) so blocked my chimney with this; it was like a gale, and suddenly stopped! I never realised how much air movement there was. Since installing said fire and Cimney Sheep, my room is constantly on 20 degrees on the very lowest position. It's astonishing! What's also amazing is that my bills haven't gone up and yet I am twice as warm!! Fantastic product. Also it's Natural. 10 out of 10.