MEECO’S RED Devil 1105 Fireplace Insert Insulation - 10' x 1-1/2" Fiberglass Strip - Forms Smoke and Gas Tight Seal - Made in The USA

if you use this on your woodstove or smoker...it should be replaced yearly. I hadn't done it for years! Easy to install. Works great!

Work perfect

Not very dense, but seems to work. Wish it was a bit more full.

Used this on inside of my fireplace insert surround. Surround sits on a rocky surface so needed this to stick to inside of surround and fill gaps once pushed against uneven rocky surface so cold air does not blow through. This works perfectly. Great insulation. The sticky side worked perfectly too.

Difficult to install in narrow spaces. Adhesive tape comes off fiberglass easily. However I did manage to install and it seems to work okI think it is overpriced for what it is.

The insulation was easy to work with. It held its shape. And, it didn't separate from itself. I bought this to use on my fireplace doors. When you buy a fireplace door, it usually comes with very little fireplace insulation.This insulation was exactly what I needed. The adhesive backing stuck well to surfaces (even porous stone) leaving a smoke and draft tight seal. The best part was that it didn't separate into strands or worse-- cotton-candy like pieces of fiberglass. I'd buy this again.

First, gotta give it to them; as described, it's a "10' x 1-1/2" wide strip of fiberglass insulation"Shame on me; I missed the "fiberglass" part. Because of that, I paid such a hefty price ($18.05 plus $5.22 shipping) thinking that it was particularly fire-proof and not prone to being blown into my living room via the fireplace insert's fan. I was wrong on both counts.For those needing to insulate the space between a fireplace insert and a (masonry) fireplace, there are a few points to consider when using fiberglass for that purpose.Fireplace inserts usually have two layers of sheet metal between it and the masonry. The first surrounds the actual fire box, and it gets very hot. The second is separated from the first by a couple of inches or so. The air heated between the two layers is what's blown by the fan into the living area. The space between the outer layer and the masonry is what's to be sealed via insluation. My insert says the temperature of the outside box does not exceed 200 degrees Farenheit. So fiberglass should be OK for that.Be sure to check that outer layer to see if there are any holes in it. Mine has several holes, some to enable the gas line and wiring to pass from the outside of the unit to an area between the two sheet-metal boxes in the bottom section that holds all of the gas-pipe plumbing and control components. The areas of four holes are several square inches each. If I had just stuffed the insulation from the product around the perimeter, I have to believe that the swirling air from the fan would pick up some of that fiberglass and blow it into my living room. If, that is, the small amount of insulation provided would have sufficed to seal the perimeter.The double-stick tape just gets in the way--no way to really stick it to one side of what's being sealed without (easily) ripping the fiberglass from the tape. Given the insufficient amount of insulation and the messiness of trying to install it, I ended up throwing it out.I then re-started with 1.) a larger package of fiberglass insulation and used 2.) metal duct tape to seal the outside sheet-metal box that is next to the insulation to ensure that all holes were covered. Be sure to get the metal tape; the fabric stuff will surely separate from what you stick it to, usually before the end of the heating season. Using this approch ensures that the insulation stays on the outside of the box and cannot enter the heated air blown into my living room. Together, both of these replacement products did the whole job, i.e,. filled the gap between the fireplace insert and the brick fireplace and ensured that the fan won't blow fiberglass into my living room.For about the same amount of money, here are some alternative products to consider from the usual places:Lowes.com:3M 1.88-in x 150-ft HVAC Tape, Item #: 225505 (Model #: 3381) $7.98Johns Manville 1-Pack R-6.7 Fiberglass Insulation (48-in L X 16-in W X 2-in D), Item #: 35136 (Model #: B777CT40) $6.25If you prefer homedepot.com:Owens Corning EcoTouch Unfaced 2 in. x 16 in. x 48 in. R-6.7 Multi Purpose Continuous Roll (Model # A85P)$6.25Nashua Tape 322 1-57/64 in. x 50 yds. Aluminum Foil Tape (Model # 3220020500)$7.88I've bought quite a bit from Amazon and usually just say I received what was expected--only once before (about three years ago) had good reason to either complain or had additional information beyond the excellent sets of reviews that I use extensively.

The package arrived earlier than promised. I had enough material to wrap my large wood burning fireplace insert on sides and top, with a little extra. When you first receive the package the wrap seems small, however it expands greatly and works well. I have a custom carved block fireplace that is multi-faceted, and this still worked well.