Your question: Can you use lava rocks in a fire pit?

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.

Can you use lava rock 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.

Why are my lava rocks exploding in my fire pit?

Why Are The Lava Rocks Popping in My Fire Pit? The lava rocks are popping because they have water trapped inside them. Water enters the porous rocks through the tiny holes, and when the rocks become hot, this water turns to steam. The pressure caused by the steam leads to the rocks exploding.

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Does lava rock catch on fire?

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.

Does lava rock explode when heated?

Lava rock can explode when heated if it has water trapped inside it. If the lava rock is dry it won’t explode.

Can you roast marshmallows over lava rocks?

The bottom line, cooking over a propane fire pit is perfectly safe – just keep the media (lava rock or glass) and burner free of food drippings, dirt, debris, etc, to help maintain a clean flame that is free of smoke.

What do you put in the bottom of a wood burning fire pit?

What do you put in the bottom of a fire pit? You’ll want to start with a layer of sand at the bottom of the pit, and then top the sand with gravel, lava rocks, fire pit glass, paving stones or even bricks for your fire pit. Alternatively, you can simply use dirt.

How do I put lava rock in my fireplace?

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. You are now ready to lite your firepit.

Why is my fire pit popping?

This typically happens when tempered fire glass is damp or wet and the burner is turned on. The heating of the moisture causes an expansion as it turns to a gas which may cause some of the cracked (but not completely broken) pieces of tempered glass to separate into pieces.

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How often should you replace lava rocks?

With traditional use, lava rocks should last for about two years before replacements are required because of the build-up of grease, which can affect flavor, as well as the natural deterioration of the lava rocks from frequent heating and cooling after use.

How much lava rock do I need for fire pit?

To calculate the amount of lava rock needed to fill a circular fire pit or bowl, use the following equation: Diameter X Diameter X Depth, divided by 24 = pounds of lava rock needed. We recommend a minimum 2” depth for most installations.

How many pounds of lava rock do I need for a fire pit?

How Much Do I Need? The rule of thumb here is that, lava rock gives you twice the volume per pound as fire glass. So if you fire pit requires 40 lbs of fire glass to fill it, it will only require 20 lbs of lava rock.