Glass Chips or Lava Rock for Fire PitsLava Rock or Glass chips in fire pits

Yesterday I received a mail from an individual who had an engaging problem and I would like to share it with you as you may of encountered the very same thing. His e-mail was this:

We constructed a natural gas fire pit and put lots of colored glass chips in it. It works well, looks wonderful but is useless for roasting marshmallows : (.

It feels like an open flame just lights the marshmallows … We need coals. But I don’t want to put wood in and handle the ashes.



We here at Lava Rocks for Fire never had a question or problem of this nature presented to us, but upon reflexion and talking about it with our staff this was our solution to this problem. We had seen it done before but only by 2 people.

our return email went as follows:

Your e-mail was interesting, we had not ever heard about this kind of problem before.

Glass chips make for a pretty fire, one where you would not want to mess it up with food drippings like marshmallows or hotdogs for example. And glass will not hold heat very well; or reflect glowing heat too.

Lava rock appears to get only better with age due to the carbon build up caused from food burn to a “carbon crisp” (and lava rock hides these crumbs as the rock isn't so uniform in size and colour and is permeable). The heat built up in the lava rock with natural gas or propane pumps out better for roasting those party favourites because of the thin walls of the lava rocks ‘ micro caves, occasionally turning them growing red (so creating ember like effects).

It all boils down to a pair things you want to choose for yourself, and only you can answer them. Do you want a pretty fire pit or a useful fun fire pit? Or better yet , why not both?

I've seen both functions built into the same fire pit.

In this one case we have seen, they put a double gas ring in the pit with one rings being bigger in diameter than the other. And dependent on your taste and style you are trying for, they put coloured glass chips in the center over the smaller gas ring and lava rock on the outside over the bigger diameter gas ring.

What this did was kind of cool. When these people wanted just pretty flames they turned on the center gas ring which was under the glass chips; but when they wanted a fun roasting flame they might turn on the larger outside ring, the one under the lava rock.

This might be something to contemplate.

I wish you all of the best and have a great time with this.


Building a back garden fire pit is fun and still can be terribly handy. There isn't any need to sacrifice one for the other when you can have both. I hope this text permits you to see that you can create a very unique and fun fire pit for you own backyard. Its something new to think about.

Lee Miller is your source for lava rock for fire pits and lava rock for bonsai check him out at his web sites and if you've got any comments or questions contact him from there.

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