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Lava Rock

Lava rocks in all different sizes and colors

Put it in your gas fire pit, it becomes a decorative thermal buffer for ignition electronics. Put it in a fireplace, it becomes artificial ash. Put it in your garden as a decorative soil aerator.

Need more? Discounts may be available for large quantities!

Call us today at 1-888-986-1535


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This a set of extra-large lava stones for use as a media in gas-powered fire pit and fire table burners. This is a 12 lb bag. Don’t cover the burner system with any additional shielding, grates, or other materials that have not been approved with YOUR fire pit/fire table assembly. Don’t add additional burner media or any other material not specified in YOUR installation and operating manual of your fire pit/fire table. Don’t allow burner media on pilot assembly screen.
$45.00
Generally speaking, volcanoes are bad (you could ask the people in Pompeii, if they were still around to argue the point). But as it turns out, they're not all bad -- they give us lava rock! The flow of lava as it travels fills it up with micro-pockets of gas that gives the cooled rock a unique texture among stones. It's porous makeup allows it to be a near-perfect natural insulator from heat, and a great breathable coating for soil for landscaping. This lava rock has been sifted so that every granule is roughly 1/2" in diameter, allowing it to pack a little tighter than larger types ...
$32.47

Where does lava rock come from?

Lava rock is volcanic stone; that is to say, it is chunks of rock that has been harvested from the lava of a volcano. Don't worry -- it's usually from inactive volcanoes.

Is it just stone?

Not quite. Unlike sedimentary stone (like shale) which has been formed by pressure squeezing it together over millions of years, lava cools quickly and so lava rock has many gas pockets in its surface making it lightweight and porous. Because it is formed from super-hot magma it is also more fire-resistant than other forms of stone that can expand, crack, and explode when put in a fire.

What is lava rock good for?

Because of its heat resistance, uneven surface, and low cost lava rock is a common component of gas fire features. There are several reasons for this:

  • As our most affordable fire media, lava rock is often used as a "filler." Many contractors use lava rock to fill up the bottom area of a fire pit, burner pan, or fire bowl so that they don't have to use as much of more expensive fire pit media like fire glass. 
  • When used in fire bowls, lava rock creates a buffer between the burner and the sides of the bowl.  This keeps the bowl cool to the touch even with a heavy flame. This is important, because some materials (such as concrete) may crack if exposed to hot spots.
  • Many people enjoy the look of our lava rock as-is. It gives a raw, earthy feel to any fire feature, and the uneven shape coupled with the microscopic pockets in the surface make gas flames burn in a more chaotic natural pattern.
  • The surface pores also makes lava rock a commodity in gardening, as they allow air, water, and nutrients into the soil. Lava rock is popular as a mulch and in garden pathways because unlike wood chips, it will never rot.

Can I use it in my pond or fountain?

Well... you could, I suppose, but there is one thing about lava rock that you need to know:

Lava rock floats in water.

The microscopic air pockets that I mentioned before can trap air inside, so despite its strength lava rock is lightweight and buoyant; most pieces float. If not retained properly in a garden, it can wash away quite easily -- make sure to put it in an area with good drainage so that you won't have to constantly replenish it.

Looking for something a little different? Can't find it listed online? Questions? Contact us:
1-(888) 986-1535     Chat or email us.

Customer Feedback  Our customers rate us 5/5 stars.

Our loyal customers have left 59 company testimonials giving us an average of 5/5 stars for great service. Would you like to leave your own feedback, testimonial, or review? Leave My Feedback

Just wanted to say thank you for the professionalis m and quality of your company and product. The fireplace glass fit perfect.

Jeff rated our company service 5/5 Jeff

Knowledgeable salesperson
Ron helped me out very well on the phone (assistance with measuring). I was impressed with his follow-up too.

Janet P rated our company service 5/5 Janet P

Just wanted to let you know we (finally) received the correct grate. Please extend Marcy our thanks – she was very helpful throughout this!

Lisa rated our company service 5/5 Lisa

Thanks Samantha
Samantha was great! I forgot to email her as I promised. My doors came and they were wrong. She worked with me and stayed in contact and got the right ones delivered. She was prompt and very friendly. Mistakes happen and I didn't mind cause of how great I was treated. I tell everyone! The doors are fantastic and look great. Thanks!

Frank rated our company service 5/5 Frank

Pro Tip
Thank you for the quick reply. I was successful installing my fireplace door this morning by adding a couple of washers between the bracket and bolt/screw supplied. I really am thrilled with the quality, craftsmanship, and ease of installation. Maybe this tip will help others if they find themselves in a similar situation.

Chip rated our company service 5/5 Chip

About CJ's Home Decor & Fireplaces LLC Thanks for Shopping CJ's!
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Fax: (814) 723-4187
Warren, PA 16365
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