![]() ![]() When you light the gas burner, you can move the rocks around carefully with a poker, which can help you get the flames into a shape you are happy with. Only use genuine lava rock in gas fire pits do not use synthetic lava rock designed for use in planters or gardens. Lava rock that is 1 to 3 inches in diameter is the most common choice for fire pit use. Lava rocks for fire pits are available in different sizes (usually between ¼ inch and 6 inches, and a few colors – typically red or black/gray. This will depend on the shape of your fire pit and the required depth of lava rock. You will need to figure out how much fire pit rock you need to buy. The small fire rocks, which fit tightly together, will give you a good foundation for your subsequent layer which could be lava rock, or fire glass, as an alternative, if you can afford this. Fill the pit to just above the burner element. It is a good idea to use small lava rocks for your first layer of rock on the gas fire pit. Each fire pit is different, and yours will have instructions about the quantity required. Most fire pits need between two and four inches of lava rock. Many people put a layer of pea gravel or sand on the bottom of the fire pit first (about an inch) as a foundation, and then lay the lava rock on top. When you get your bag of fire pit rocks from the supplier, be aware that there may be dust in the bag, because of how the rocks are sourced – they are collected from a lava field and tumbled. How To Arrange Lava Rocks On A Gas Fire Pitīefore you start arranging lava rock on your fire pit, there are a few steps to take. If your lava rock is exposed to the sun for long periods, it is a good idea to cover your fire pit when not in use. Lava rock is also relatively inexpensive. It is eco-friendly, lightweight has no additives or chemicals, and keeps its color well over time. It needs very little maintenance and is highly durable, so it can be used repeatedly. Long-Lastingĭue to its volcanic origin, lava rock can withstand extremely high temperatures and will not crumble or become damaged. This helps the burner perform better, and extends its life. The lava rock protects the burner from that extreme heat because it has excellent insulating properties. The flame and the heat are at the top of the fire pit. When you light your gas fire pit, the gas moves through gaps in the lava rock and keeps the flame burning on the top. As lava rock is water-resistant, it can help move water to your fire pit’s drainage system. WeatherproofingĪ layer of lava rock in your fire pit (about three to four inches) can protect the fire pit’s burner during all types of weather. This is very useful for gas fire pits, providing all-round long-lasting heat with no cold spots. Lava rocks excel at this and distribute heat evenly and for an extended period. Lava rock is a much safer option and has many advantages: Heat Retention Sandstone, river rocks, natural rocks, and gravel are not ideal for gas fire pits because they are more likely to crack or explode under high heat. With their rustic appearance, lava rocks for natural gas fire pits are a popular choice and can also be used in an indoor gas fire. What Are The Alternatives to Lava Rock?.How To Arrange Lava Rocks On A Gas Fire Pit.Do not replace the lava rock with anything else as this could cause the burner to stop working. Our burner has been tested and CE approved safe for use only with lava rock. ![]() During this time keep away from the firepit, and make sure there are no cushions nearby that any spitting rocks could land on.Ĭover the rocks when not in use to keep them dry. The heat will burn off the moisture quite quickly. Alternatively, place the rocks on the burner and light it. Once the lava rock has dried out, this is no longer a problem.įor new installations, the lava rock may be wet, so it’s best to remove it from the bags and allow to dry out before placing it on the burner. It may even spit small pieces out of the firepit. If you light the burner with wet lava rock, the moisture inside turns to steam quickly and can cause the rock to pop and crack. Lava rock should be placed one layer deep, just enough to cover the burner tubes.ĭo not place lava rock on top of the pilot cage. 5kg Bag of lava rock – enough to cover an area approx 1,800 cms sq. ![]()
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