A vermiuculite gas log burner box is an add-on product that allows you to use your existing natural or propane fire pit, fireplace or gas logs with a vermiculite gas log burner. It’s a simple and easy way to improve the performance of your fireplace or gas logs and can be used in conjunction with other materials like lava rock, glass or beads. If you have any other questions about using vermiculite granules with gas logs, please don’t hesitate to contact us. We’re happy to help!