Some materials like hard rock, gravel, or sand weren’t meant to reach high temperatures and can spark and explode if your fire gets too hot. Instead, use lava rocks for your fire pit or lava glass beads as a filler for your fire pit. They are a safe way to create drainage and make your fire pit look nice.
How long do lava rocks last in a fire pit?
Lava rocks should last for around two years before they start to show signs of wear. Keep using them in your fire pit until you notice them getting a little crumbly looking.
Do I need lava rocks for wood burning fire pit?
Fire Pit Safety
Never burn anything without a protective layer of lava rock on the fire pit bottom. If burning wood, place a layer of lava rock at least 4-5 inches deep. Then place your firewood on the lava rock. For gas fires, fill the fire pit with enough lava rock to at least cover the fire ring.
What happens if lava rocks get wet?
Lava rocks are porous like a sponge. If the rocks are wet, water can get trapped inside of them. When you heat the lava rock up, the water turns to steam. … This expansion of the water can break open the lava rock making it explode.
Do you cover the burner with lava rocks?
No grate needed, can cover the burner directly however you don’t want more than 1″-1.5″ of rocks on top of it. … Completely covered mine with lava rock and it works like a champ.
What can I do with old lava rocks?
3 Uses for Lava Rock – Or Just Rent a Dumpster!
- Build a fire pit: Many DIYers suggest lava rock can be used when building an outdoor firepit. …
- Use lava rock for drainage in a flowerpot. …
- Hack a gas grill and make it feel like charcoal.
What should I put around my fire pit?
Cover the landscape fabric or plastic with a non-flammable material of your choice, such as river rocks, gravel, brick or stone pavers. If you use stone pavers, spread silica sand on top of them, and use a broom to push the sand into the cracks between the pavers to help hold the pavers securely in place.