Should Gas Fire Glass Doors Be Open Or Closed

Because of the damper position requirement the use of masonry fireplace glass doors is required with a vented gas log setup.

Should gas fire glass doors be open or closed.

Doors can only be closed if there is no fire burning. Tempered glass fireplace doors should remain open when a fire is burning. Always keep the screen mesh on your fireplace closed when using the fireplace to guard against sparks popping out of the firebox area. The glass can shatter sending hot shards of glass into the room.

That is why we do not recommend closing the glass doors on a fireplace while there is a fire. 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. 3 really good reasons to not burn a fire with your doors closed 1 you will shatter your glass doors. The glass doors should be closed as the fire dies down to minimize the amount of room air going up the fireplace chimney.

Therefore the more air that reaches the fire the better the combustion and the warmer your home will be. Make sure anything that can burn. When burning gas logs in a wood burning fireplace the glass doors should always be fully open when the gas logs are burning. Open no glass doors like isokern or firerock with add on gas burning unit fake ceramic logs.

When the gas logs are in use the chimney damper must be in the full open position allowing 100 of the exhaust carbon dioxide and water to be directed up the flue and out of the house. 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. This results in a dull blaze with little heat output. If your fireplace doors are shut oxygen cannot reach the flames.

All gas logs should be burned with the doors wide open even if a mfr tells you they are approved for closed doors. First open the flue. If you close the doors the flames pull towards the glass where it can impinge and shatter the glass. It also elevates the temperature of the firebox and flue by greatly reducing the volume of air moving through the venting system.

Fireplace doors should always be kept open while a fire is burning. It is still an open hearth fireplace which is susceptible to aerodynamics. If your fire isn t dying down you shouldn t close the doors. 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.