||1kg≈4.3L≈70pcs and can cover almost 0.13 square meter
Important information during installation:
Ceramic lave rock do not cover or clog the gas orifices.
If the gas orifices cannot be avoided, please keep the logs stones away from at least 50~100mm above of the gas orifices.
If you can lay some bigger particles on the bottom to disperse the fire flame, such as bigger vermiculite, bigger volcanic stones, bigger fireglass, or something else is larger than the gas orifices, to avoid the gas fire direct combustion on the logs stones, which can effectively avoid carbon excessive or insufficient combustion.