Can fire glass be used instead of lava rock?

How do you use fire glass? You use fire glass as a filler to replace your outdated lava rocks or fake ceramic logs.Click to see full answer. In respect to this, do you cover the burner with fire glass?Glass Coverage: Use enough fire glass to cover the burner but don’t layer the glass higher than 1/2” above the burner in propane gas applications. You can use slightly more fire glass in natural gas applications.Subsequently, question is, what is lava glass? Volcanic glass, any glassy rock formed from lava or magma that has a chemical composition close to that of granite (quartz plus alkali feldspar). In respect to this, do you need lava rocks in fire pit? Instead, use lava rocks for your fire pit or lava glass beads as a filler for your fire pit. They are a safe way to create drainage and make your fire pit look nice. Sandstone, river rocks, natural rocks, and gravel are not ideal fill for fire pits because they are more likely to crack or explode under high heat.Is all lava rock heat resistant?In fact, it can be dangerous to use stones that are not specified heat-resistant, as they can crack, pop and even explode when heated.) Of lava rock, glass and stones, each absorbs and retains heat quite differently. Lava rock is very porous and hardly holds heat at all.