When used as burner media Fire Glass And Lava Rock are typically used in one of the following ways:
1- As decorative media to fill and cover a fire pit burner.
2- To be placed over a vented gas log burner in a fireplace that has been converted to gas.
3- With a fireplace burner kit specifically designed to be used with Fire Glass or Lava Rock.
• Cannot cover the burner ports on a Vent Free or Direct Vent fireplace unless indicated in the appliance manual.
•Typically the media covers the burner by up to 2". See your product's installation manual for more details.
•Sold in 10lb increments.