First open the flue.
Gas fireplace glass doors open or closed.
A fireplace uses tempered glass that is resistant to physical shock.
Keep in mind the glass used with a wood stove is different from that used with a fireplace.
Ceramic glass doors cost 3 to 4 times as much as standard tempered glass but they are designed to withstand the high heat that fireplaces generate.
In the off chance you have.
Ceramic glass doors a masonry fireplace and do not care about any heat coming into your room then it is ok to burn a fire with your glass doors closed.
Compatible with a traditional masonry fireplace the decorative compatible with a traditional masonry fireplace the decorative and bi fold pleasant hearth ascot collection glass fireplace doors have a 1 piece welded frame and a high heat powder coated black finish.
If you close the doors the flames pull towards the glass where it can impinge and shatter the glass.
Designed as a surface mount these track free doors sit outside the fireplace opening against a flat surface and help reduce.
At this point the temperature from within the fireplace is moderate and won t cause damage to the glass.
Do not attempt to close your masonry fireplace doors until only a few embers are left burning in the hearth.
Build a fire with dry seasoned firewood and kindling or fire starter bricks then close the metal mesh screen but leave the glass doors open.
It is still an open hearth fireplace which is susceptible to aerodynamics.
How to have a fire.