There are several good reasons to utilise a steel fire pit liner when building your wood burning fire pit:
It could be a requirement of your local Fire Code. Check with your local Fire Dept.
A steel fire pit liner will protect the stones/rocks used in the construction of your fire pit from the heat. It will last longer.
Bricks and rocks absorb heat, whereas steel reflects a proportion of the heat, up and out of the fire pit, which is exactly where you want the heat to go, if you are looking for warmth from your fire pit.
Whether you are building a fire pit in the ground or on the ground, a steel liner will create a structurally sound core around which you can easily create a professional looking, long lasting fire pit.
Utilizing a steel liner actually makes the construction of your fire pit easier, whether you are building it in the ground or above the ground.
There are 3 Sizes of Steel Fire Pit Liners Available: