Heat Resistant Glass
Based on their heat resistant qualities, there are two types of glass commonly used for a fireplace or wood stove: tempered glass and ceramic glass.
Tempered glass is the less expensive alternative, and is best for lower temperature applications. It can withstand constant temperatures of up to 470 degrees F. Tempered glass is regular glass that has been strengthened through thermal or chemical treatment. Tempering not only strengthens the glass, but also changes its breakage pattern, causing it to shatter into small pieces instead of large sharp angles, reducing the chance of injury. It is best used for applications where fire will not be near the glass, as constant temperatures of 500 degrees or more will cause it to weaken and shatter.
PyroCeram® and NeoCeram® Heat Resistant Glass
Ceramic glass is best for higher temperature applications. It can withstand constant temperatures up to either 1256 degrees F (PyroCeram®, 1/8″ or 3mm thick) or 1470 degrees F (NeoCeram®, 3/16″ or 5mm thick). It is actually not glass, but a polycrystalline, transparent ceramic material. Because of its ability to withstand constant high temperature, it is best used for applications where glass must be within a proximity of 6 inches or less to fire or for applications where the temperature exceeds what tempered glass can withstand.
It is also the best choice if safety is your primary concern because it does not easily shatter from high levels of constant heat.
Please consider these factors when selecting the type of glass you need:
• The proximity of the glass to the fire
• Your regard for safety
• Any occurrences of breakage of previous glass used in your fireplace or wood stove
If you’ve checked these factors and are ready to select a type, please use our handy quote tool to check our prices.
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