All gas logs should be burned with the doors wide open even if a mfr tells you they are approved for closed doors.
Gas fireplace doors open or closed for heat.
Allowing your fireplace doors to remain open will promote better airflow.
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.
99 of the time your fireplace doors should be open when you are burning a fire.
Oxygen is a key element in healthy burning fires.
It is still an open hearth fireplace which is susceptible to aerodynamics.
If your fireplace doors are shut oxygen cannot reach the flames.
Open no glass doors like isokern or firerock with add on gas burning unit fake ceramic logs.
This results in a dull blaze with little heat output.
In the off chance you have.