My buddy built an outdoor fire pit out of granite that is usually crushed and used to build roadways.
Is granite safe for fire pit.
If there is a high enough volume of water in a hot porous rock the rock will explode when the force of the expanding steam gas inside is greater than the rock can contain.
Heat it and it could turn to steam and fracture the stone.
The following rocks are not very likely to explode but should be approached with with common sense.
Here are some ways to ensure your fire pit is safe.
Soft rocks these will explode if they contain moisture.
Take some time to sort through the blocks and make groups of sixteen blocks that match thickness as closely as possible reserving the most consistent block layers for use as your middle and or top layers.
The problem i believe is that certain stone contains water.
Backyard fire pits can be a safe feature for your outdoor space if you take certain precautions.
Fire pits must be at least 10 feet from a house or any outbuildings property lines and fences.
Keep fire pits at least 15 feet away from your house other structures and combustible materials ex.
This is because air or water is absorbed by the rock when it is cool and then the air or water molecules trapped inside the rock expand faster than the solid rock when it heats up next to the fire.
General tips for fire pit safety.
When wet don t use them.
There are a number of things that we encourage our customers to keep in mind when considering the safety of stone fire pits in racine wi.
You want to make sure you re choosing a spot that s well away from any structure as sparks can travel quite a bit further than you might initially expect.
The fire pit should be built into the ground using non flammable.
As our granite fire pit blocks are a natural stone there will be a variation in thickness which is well within the standard industry guidelines for cut granite products.
Generally if you rub two of the same rocks together and they crumble easily then they are not safe to use.
Fire pits commonly consist of an inner wall an outer wall a cap i e a flat tabletop like surface around the opening at the top of the pit and decorative stones or rocks in the center.
The location of the fire pit is another essential element in fire safety.
Leaves wood chemicals etc.
A fire pit made from concrete or cinder block and mortar and lined with fire brick is ready for granite finishing stones as the concrete block and fire brick provide the granite stones necessary protection from the fire s heat that would otherwise cause the granite to crack and or discolor.