There are numerous causes that could cause a glass door to a fireplace to shatter. The glass is able to withstand the ravages of everyday life without you even noticing it. Toys are dropped on the glass, elbows could be hit at it and many other events can occur that can cause the glass to scratch or crack. It’s all it takes is one scratch and the heat will expand and cause it to shatter. Avoid this by making rules for playing around the fireplace and taking care of yourself whenever you spend a lot of time near it.

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Tempered glass can only stand up to only a certain amount of heat (up to 450 °). While it is resistant to severe temperatures, it is prone to. If the glass in your fireplace door is continually exposed to temperatures that exceed 600 degrees it could shatter. Due to the thermal contraction and expansion. In the event that the glass expands in excess, it can shatter into small pieces. The best solution is to open the doors during the time of a burning fire and watch the temperature of your flame to avoid glass from shattering.

If the glass isn’t appropriately tempered, it could also cause the glass doors of your fireplace to shatter. When glass is being tempered, it’s exposed to the heat, its properties change, and the glass will be more resilient. If this procedure isn’t done correctly it will result in the opposite being accomplished and the shattering could be even more hazardous because it will result in large pieces of glass instead of small pieces.

Although tempered glass may be able to withstand temperatures at a particular degree, however, it’s essential to keep both doors open when the flame is burning. It’s fine to keep them shut in the event that there’s not any fire or fire is simply embers, however, keeping both doors closed during the fire roaring can lead to catastrophe.