Fire Glass Calculator
Calculate fire glass weight and volume needed for fire pits and fireplaces
Calculate Fire Glass Requirements
Typical depth: 25-75mm (1-3 inches)
Fire Glass Requirements
Glass Type: Reflective
Glass Density: 1.457 g/cm³
Estimated Cost: $0.00
Formula: Weight = Area × Depth × Density
Depth Recommendations
Example Calculation
60cm Square Fire Pit Example
Fire Pit: 60cm × 60cm square fire pit
Glass Type: Recycled fire glass (1.445 g/cm³)
Depth: 75mm (7.5cm) full coverage
Area: 60 × 60 = 3,600 cm²
Calculation
Volume = Area × Depth = 3,600 cm² × 7.5 cm = 27,000 cm³
Weight = Volume × Density = 27,000 cm³ × 1.445 g/cm³ = 39,015 g
Result: 39.0 kg of recycled fire glass needed
Estimated Cost: $390 (at ~$10/kg)
Fire Glass Types
Reflective Fire Glass
Coated for maximum light reflection
Density: 1.457 g/cm³
Recycled Fire Glass
Eco-friendly, natural appearance
Density: 1.445 g/cm³
Tempered Fire Glass
Heat-resistant, safety tested
Various densities available
Safety & Tips
Only use certified fire glass - never regular glass
Ensure complete burner coverage for safety
Clean fire glass regularly for best appearance
Consider mixing with lava rock to reduce cost
Use mesh screen between different materials
Understanding Fire Glass
What is Fire Glass?
Fire glass is an ornamental bead material made of heat-tempered glass that can withstand high temperatures without melting or breaking. It's used as a decorative alternative to traditional fire pit media like lava rocks or ceramic logs.
How Does Fire Glass Work?
- •Covers the gas burner mechanism in fire pits and fireplaces
- •Reflects and refracts light from flames for sparkling effect
- •Does not burn itself - acts as decorative medium only
- •Creates illusion that glass itself is on fire
Calculation Formula
Volume = Area × Depth
Weight = Volume × Density
Key Considerations
- Depth: 25-75mm typical range
- Coverage: Must completely cover burner
- Cost: Approximately $10-15 per kg
- Safety: Use only certified fire glass
- Maintenance: Clean periodically for best appearance
Cost-Saving Tip: Use lava rock as base layer and fire glass on top to reduce costs while maintaining visual appeal.