We’ve always used logs in our fire pit, but my neighbors swear by lava rocks. Perhaps it’s time to give them a shot, but are they really any good?
Lava rocks are great for fire pits since they distribute the flames, spread the heat, and look fantastic when burning.
They can withstand extremely high temperatures without shattering or exploding (if burnt from dry), as well as retain heat for several hours, making them perfect for a variety of fire pits.
Let’s dig deeper into lava rocks and learn how and why to use them in our fire pits.
What Does Lava Rock Do For a Fire Pit?
Lava rocks are excellent for use in a fire pit since they distribute the flames, spreading the heat and creating a beautiful appearance.
The heat from the burner goes straight up, but if you put a layer of lava rocks around it, the heat will be dispersed throughout the area.
Because the heat is now being radiated through the hot rocks, you’ll get that campfire sensation when you sit around the fire pit. Not only that, if you have a gas fire pit, it will seem much more lifelike as well.
Can You Use Lava Rocks in a Wood Burning Fire Pit?
Lava stones can be used in your wood-burning fire pit. They aid in the dispersal of heat and provide a protective base layer for the pit.
They also protect the fire pit from hot spots, which might cause it to fracture over time.
Place a thick covering of lava rocks on the fire pit’s base: four or five inches from the top is excellent. Make sure water can pass through.
You may then add the logs onto the lava stones and get an even warmth from your fire pit.
Can You Use Lava Rocks in a Propane Fire Pit?
Lava rocks are ideal for propane fire pits since they can withstand extremely high temperatures. They also assist in the distribution of heat in a number of ways.
This also prevents hot and chilly areas from developing, which can damage the fire pit’s fabric.
Lava rocks aid in the creation of a drainage layer at the bottom of the pit as well as insulating the gas burner from extremely high temperatures.
Do Lava Rocks Hold Heat?
Lava rocks are excellent at retaining heat and provide a lovely, even warmth. If you need to transfer or cover them, leave them to cool for at least an hour after turning off the fire.
Is Lava Rock Fire Proof?
It is made up of volcanic magma… Lava rock can withstand incredibly high temperatures, which is why they are ideal for fire pits.
Other rocks might shatter or even blow up at very high temperatures, but lava rock just keeps absorbing heat without crumbling.
How Long Do Lava Rocks Last in a Fire Pit?
Lava rocks will last approximately two years before they begin to show signs of wear. Continue to use them in your fire pit until they become crumbly.
There are a few techniques for extending their lifespan: avoid moving them around too much (they’ll scrape against each other), and keep them dry as little as possible.
What Can I Do With Old Lava Rocks?
We have a lot of fantastic purposes for old lava rocks in our yard. They can be used as a foundation for planters to provide essential drainage.
So, it’s definitely worthwhile keeping at least a few lumps of ancient lava on hand in your shed so you can use them at a later date.
You may also use them in conjunction with dirt to make a mulch. Because it doesn’t decompose like other mulches, it’s clean and long-lasting.
Its porous texture suggests that it might be utilized to regulate the soil’s temperature as well.
Where Do Lava Rocks Go in a Fire Pit?
The fire pit’s base should be covered with lava pits. Lava rock is placed on top of a layer of pea gravel or sand to prevent it from moving during use.
This depends on the individual fire pit, which can range between two and five inches deep (anywhere between two and five inches).
How Deep Should Lava Rock Be in a Fire Pit? (How Much Do I Need?)
The minimum height required for a fire pit is five feet; the maximum is 10 feet.
The difference between the two is that the former includes an unsightly combination of rough and unfinished concrete, while the latter does not. It’s all a matter of preference, so pick one that you like best!
What Happens if Lava Rocks Get Wet?
Lava rocks, like other types of lava, can get wet: but you should check them for dampness before putting them on your fire pit since they can erupt.
Yes, that’s a somewhat drastic response to the question; nevertheless, by avoiding heating wet lava, you can avoid this from happening.
Why do lava rocks explode? Lava is a porous rock with lots of tiny holes, similar to a sponge. Water enters the stone and, when it is heated, steam arises. This steam expands the rock and, well, pops it.
If you live in an area that gets a lot of rain, consider putting your fire pit under cover or using one of these 5 easy DIY projects around the house.
You can also prevent this by keeping your fire pit dry and removing any damp rocks before igniting the burner.
Why Are The Lava Rocks Popping in My Fire Pit?
Because the porous rocks have water trapped inside them, they are exploding. Water enters the porous stones through tiny fissures, and when the rocks become hot, this water transforms to steam.
The pressure produced by the steam drives the stones to explode.
Don’t be alarmed if you hear a pop. Make sure everyone moves away from the fire pit until the popping stops. If the rocks are wet, it will take approximately 15 to 20 minutes for them to dry out (dry out).
Do not try to remove a popping rock. Wait till the fire pit has dried out before moving any closer.
Can You Roast Marshmallows Over Lava Rocks?
Lava rocks are entirely safe to use in the kitchen, which is why they appear in so many gas barbecues and grills. On a desiccated evening in the fall, roasting marshmallows… Perfect.
How Do You Start a Fire Pit With Lava Rocks?
Follow these simple instructions to build a fire pit with lava rocks…
Remove the stones surrounding the fire pit burner if you have one. Fully open the gas valve (follow all manufacturer’s instructions) and then press and hold the ignition button.
This will start a fire. Locate the platform and move the lava rocks around it carefully to make room for more fuel.
If you don’t have push-button ignition, a long match will be required. Remove the stones and open the gas valve just a bit more.
Light it with a match, then use the valve to control the flames. To hide the burner, carefully move the rocks around.
Do You Cover The Burner With Lava Rocks?
After the burner is ready, you may move the stones back over it (with tongs or fireproof gloves). The insulating rocks aid in the protection of the burner from heat.
You’ll also want to make sure that all of the surrounding rocks are equally spread out to get the greatest effect and most efficient warmth.
Can I Mix Fire Glass With Lava Rock?
Yes, you can mix fire glass and lava rock in a fire pit to obtain a fantastic effect. The rustic rock and gleaming tempered glass work well together, giving it a very attractive look.
The main disadvantage of fire glass is that it’s more costly than lava rock, therefore you’ll save money by using the less expensive material.
Just keep in mind that the glass component will require more regular cleaning than the rocks.
FAQs
What are lava rocks?
Lava rocks are igneous rocks that are formed from molten lava. They are commonly used as a decorative element in fire pits.
Can lava rocks explode in a fire pit?
Lava rocks are generally safe to use in fire pits as they are able to withstand high temperatures. However, if the rocks are wet or contain moisture, they may explode due to the trapped steam.
How do I clean lava rocks in a fire pit?
To clean lava rocks in a fire pit, remove them from the pit and rinse them with water. You can then scrub them with a brush to remove any debris or soot.
Do lava rocks retain heat?
Yes, lava rocks are able to retain heat and can radiate it back into the fire pit even after the fire has died down.
How long do lava rocks last in a fire pit?
Lava rocks can last for several years in a fire pit with proper care and maintenance.
Can I use lava rocks in a gas fire pit?
Yes, lava rocks can be used in gas fire pits as they help to distribute heat evenly and create a more realistic flame.
Do I need a grate for lava rocks in a fire pit?
It is recommended to use a grate with lava rocks in a fire pit as it helps to improve air flow and prevent the rocks from blocking the burner.
How much lava rock do I need for a fire pit?
The amount of lava rock needed for a fire pit depends on the size of the pit. As a general rule of thumb, you should use enough rocks to cover the burner and create a layer that is 2-3 inches thick.
Are lava rocks eco-friendly?
Lava rocks are a natural and eco-friendly option for fire pits as they do not emit harmful chemicals or gases when heated.
What are the benefits of using lava rocks in a fire pit?
Using lava rocks in a fire pit can help to distribute heat evenly, improve air flow, and create a more realistic flame. They are also a low-maintenance and eco-friendly option for fire pit owners.
Conclusion Lava Rock
Both are effective at distributing heat and look great in a fire pit.
Fire glass comes in a variety of finishes and is ideal for giving your outdoor area a modern, fashionable appeal. Lava rock is also beautiful, especially when used to create a more rustic atmosphere.
If your fire pit is likely to get wet, fire glass is a simpler alternative. When the water trapped within wet lava rock heats up, it can erupt violently, so you’ll have to wait for it to cool down.
Wet glass doesn’t suffer from this problem (although you will need to clean it more regularly to keep it sparkling).
However, fire glass may cost four times as much as lava rock. If you want to keep costs down, lava rock is the better option.