Glass Doors Open Or Closed On The Fireplace

At chimney safety institute of america we commonly get asked about whether homeowners should leave the glass doors on their fireplace open or closed.

Glass doors open or closed on the fireplace.

In retrospect keeping your fireplace doors closed during the hotter months curtails warm air from entering your living space through the chimney when you re running the a c. Tempered glass that comes standard on most fireplace doors will shatter once it reaches temperatures of 450 degrees. Without direct combustion air into the firebox area glass doors need to be in the open position during your fire. That is why we do not recommend closing the glass doors on a fireplace while there is a fire.

Even if this doesn t happen it can severely distort the flames. When you use your fireplace it is best to leave the glass doors open while the fire burns. If the doors are closed you are losing all of the fireplace s heat. If you close the doors the flames pull towards the glass where it can impinge and shatter the glass.

When burning gas logs in a wood burning fireplace the glass doors should always be fully open when the gas logs are burning. Your fireplace isn t a woodstove. Even more important is to leave the glass doors closed and the air shutters closed in between uses of the fireplace to minimize the loss of heated room air when the fireplace is not being used. It is still an open hearth fireplace which is susceptible to aerodynamics.

Tempered glass 99 of the time your fireplace doors should be open when you are burning a fire. Glass doors should be fully open when starting a fire and when the fire is burning strongly. If you crack the doors open partially it can draw fumes and heat into the space. In the off chance you have.

Keeping the doors open allows sufficient airflow to ensure complete combustion and to minimize the. Burning with the doors closed makes for a smokier fire a dirty chimney and more air pollution. A fireplace uses tempered glass that is resistant to physical shock. 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.

Simple to install in 3 easy steps these fireplace doors add warmth elegance and safety to your hearth and are fully assembled. More product details close. Always use a metal mesh spark screen and close it after tinkering or adding more firewood. Operating the fireplace with the doors closed redduces the losses of that heated room air.

Closing your glass doors when you re not burning a fire in the hearth will actually prevent this from happening. This will help you save on heating and cooling costs. The air shutters at the bottom provide a small amount of fresh air for the wood to burn. Keep in mind the glass used with a wood stove is different from that used with a fireplace.

The glass doors should be closed as the fire dies down to minimize the amount of room air going up the fireplace chimney. A wood stove uses a pyro ceramic glass that is resistant to thermal shock.