2 it is not safe.
Fireplace glass doors closed with fire.
For wood burning fireplaces some masonry doors can be gasketed for an extra tight seal.
First open the flue.
Make sure anything that can burn.
Closing the doors while your fire is burning can create a fire hazard and the tempered glass door is not meant to withstand such heat.
It also elevates the temperature of the firebox and flue by greatly reducing the volume of air moving through the venting system.
3 really good reasons to not burn a fire with your doors closed.
The rigid mesh panels behind the doors have easy catch magnets and safety handles and should always be closed and glass doors opened when you have a fire going.
Typical fireplaces reach temperatures between 500 and 1200 degrees.
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Doors can only be fully closed once the fire has died down to a coal bed.
Doors should be open when burning a moderate to large fire or when burning gas logs.
Closing your glass doors when you re not burning fire in the hearth will actually prevent this from happening.
Ceramic glass is designed to withstand temperatures up to about 1400 degrees.
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This will help you save on heating and cooling costs.
Doors on a fireplace that use tempered glass are more susceptible to shatter due to high temperatures from a fire and so it s recommended to always keep fireplace doors open when having a fire.
It s recommended that glass doors on a wood burning fireplace are left open during a fire.
When using gas logs fire glass or modern gas media the doors must remain fully open at all times while in use.
Fire administration usfa states that.
Simple to install in 3 easy steps these fireplace doors complement are fully assembled and give your hearth a warm and inviting look and feel.
Standard tempered glass is made to withstand temperature up to about 450 degrees.
The glass can shatter sending hot shards of glass into the room.
If your fire isn t dying down you shouldn t close the doors.
Additionally it defeats the purpose of a fire heating your room as all the heat will go straight up your chimney not into your room.
Fireplace glass doors increase fire heat when closed during a burning fire fireplace glass doors can more than triple the net heat realized in your home.
That is why we do not recommend closing the glass doors on a fireplace while there is a fire.
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.
Fireplace doors must remain fully open while an active fire is present.