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Ceramic vs. Tempered Glass: A Detailed Comparison
While both are safety glasses, ceramic and tempered glass are designed for very different thermal applications. Understanding the difference is key to the safe operation of your heating appliance.
- Thermal Shock Resistance: This is the most significant difference. Ceramic glass has a near-zero coefficient of thermal expansion, meaning it won't expand or contract with temperature changes. It is engineered to withstand continuous temperatures exceeding 1400°F (760°C), making it the only safe choice for wood stoves, coal stoves, and fireplace inserts where the glass is close to the flame. Tempered glass, while strong, can only handle temperatures up to about 500°F (260°C). Any sudden temperature change or higher heat will cause it to shatter into small, granular pieces.
- Application: Use ceramic glass for any appliance where you are burning wood, coal, or pellets. Use tempered glass for the outer doors of some gas fireplaces or screens, where the glass is purely a safety barrier from moderate heat.
- Appearance: Ceramic glass and tempered glass look very similar, though ceramic glass often has a slight amber tint. You cannot tell them apart by eye, which is why it's crucial to order from a reputable source.
Common Use Cases for Ceramic Glass
Ceramic glass is the industry standard for high-temperature applications. Its reliability and safety make it essential for:
- Wood Stove Doors: The primary application, where it contains the fire and radiates heat safely into the room.
- Coal Stove Doors: Easily handles the intense, prolonged heat generated by burning coal.
- High-Efficiency Fireplace Inserts: Used in modern, airtight fireplace inserts to maximize heat and efficiency.
- Gas Stoves: Many high-output gas stoves also require ceramic glass due to the intense, direct heat they produce.
Why Choose Our Ceramic Glass
- Custom Fit – Cut to your exact dimensions (up to 32"), ensuring a perfect fit every time.
- Extreme Heat Resistance – Withstands up to 1,470°F without cracking.
- Thermal Shock Protection – Built to endure rapid temperature changes.
- Durable 5mm Thickness – Strong enough for daily use, yet crystal clear.
- Amber Tint for Warm Glow – Enhances firelight viewing.
- Perfect Fit Guarantee – Guaranteed to match your order specifications.
Compatible With
- Wood stoves & inserts
- Pellet stoves & inserts
- Coal stoves & inserts
- Select Gas fireplaces (check manufacturer’s manual)
Not For: Cooktops, factory-built fireplaces, or prefab units not rated for ceramic glass.
How to Measure for Custom Cut Glass
- Remove your old glass (if possible) for the most accurate measurement.
- Use a metal tape measure for precision.
- If you do not have the old glass, subtract at least 1/8" from both width and height of the frame size to allow for heat expansion.
- Double-check dimensions before ordering—custom glass is non-returnable.
Installation & Care Tips
- Do not overtighten mounting hardware—metal expands with heat and can crack the glass.
- Burn dry wood and keep a hot fire once daily to minimize soot buildup.
- Avoid impacts—heat won’t break ceramic glass, but force will.
Specifications
- Material: Pyroceram® heat-resistant ceramic glass
- Thickness: 5mm (3/16")
- Temperature rating: Up to 1,470°F
- Max size: 32" width or height
Warranty
We guarantee your glass will arrive unbroken and cut to your exact specifications. Report any discrepancies within 30 days of your order date. Custom-cut items are non-returnable unless they do not meet your provided specifications.
Order Today
Get the perfect fit, superior durability, and peace of mind with our custom-cut Pyroceram® glass. Start by entering your measurements above and we’ll precision-cut your new panel for safe, lasting performance.