Lava rocks are an exceptional choice when it comes to protecting wood burning fire pits. They provide a semipermeable barrier that is perfect for protecting the pit itself from the elements. It also makes the heat distribution more even. … You can easily replace lava rocks if needed because they are very cheap.
Can I use lava rocks in a wood burning fire pit?
Fire Pit Safety
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. Do not use rock or gravel of any kind in place of lava rock; it can potentially explode when heated.
Are lava rocks good for fire pits?
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.
Do lava rocks make fire pit hotter?
Lava rocks disperse the flame in different directions. They heat up and start radiating heat. A gas fire pit using lava rocks will radiate heat more like a wood fire than a gas burner without lava rocks.
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.
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.
How do you stack lava rocks in a fire pit?
We suggest an inch layer of sand or pea gravel on the bottom of the fire pit for a sturdy foundation. Next, take your lava rocks and place around the fire pit and burner so it fills just enough rock to cover the burner.
How many bags of lava rock do I need for a fire pit?
If you need the Fire Pit Glass Calculator please click here. * Based on 2″ depth.
Round Flat Gas Fire Pit Inserts.
|Fire Pit Size||Number of Lava Rock (657) Needed|
Should fire glass cover the burner?
Glass Coverage: Use enough fire glass to cover the burner but don’t layer the glass higher than 1/2” above the burner in propane gas applications. You can use slightly more fire glass in natural gas applications. glass.