Skyflame Glowing Embers Rock Wool for Vent Free and Vented Gas Fireplaces, 6 Oz

These larger pieces of rock wool work really well in imitating glowing embers, with the edges flickering. Very good product to fill in between and under artificial gas logs. Provides a more realistic natural looking fire, and much better looking than just the vermiculite on the volcanic rock.

This stuff works great. Given you refurbish the natural gas fireplace once every few years, I wasn't tuned into the details. Turns out, 6 ounces of this stuff would supply the whole neighborhood. Bottom line is it works great, but you must carefully tear off very small pieces of this "wool" and carefully place it around the area where flame shows during operation of your gas log fireplace. I tore off tiny pieces, spread them around, turned on the fireplace, took a look, turned it off and kept repeating this until I got the look I wanted. Very nice. But I maybe used 1/2 ounce out of the six ounce bag. So I gave it 4 stars instead of 5. This bag will last a life time. Maybe they wouldn't make any money on a two ounce bag but that's all you'll need. As for the effect of glowing embers, excellent. The product makes the look much better. As for lava rock, this wool is much more important. I bought and installed both. When you're 5-15 feet from your operating fireplace, you can't see details, only the glowing wool. Try this first. Then lava rock if necessary. The rock may disperse the gas better but this wool is the show.

Helped our gas fireplace look much nicer. They breath like embers

There is enough in this package to cover every gas fireplace in my neighborhood!

Does just what rock wool should.