First open the flue.
Gas fireplace glass doors open or closed.
Do not attempt to close your masonry fireplace doors until only a few embers are left burning in the hearth.
Leaving my glass fireplace doors open when i m not burning a fire is ok.
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.
All gas logs should be burned with the doors wide open even if a mfr tells you they are approved for closed doors.
In the off chance you have.
It is still an open hearth fireplace which is susceptible to aerodynamics.
A fireplace uses tempered glass that is resistant to physical shock.
How to have a fire.
At this point the temperature from within the fireplace is moderate and won t cause damage to the glass.
At chimney safety institute of america we commonly get asked about whether homeowners should leave the glass doors on their fireplace open or closed.
Keep in mind the glass used with a wood stove is different from that used with a fireplace.
If you close the doors the flames pull towards the glass where it can impinge and shatter the glass.