Insulation Around Fireplace Flue

Insulating a fireplace door.

Insulation around fireplace flue.

When you install your chimney liner with the proper chimney insulation your reline job creates an environment that allows your appliance to be as efficient and safe as possible. Insulation should be tucked around all sides of the firebox and the flue. It is often installed in gaps around the chimney and flue to prevent airflow that can siphon the heat away from the interior of the building. Insulation inside the wall around the vent for a wall mounted fireplace is also forbidden because it can catch fire.

To maintain efficiency safety and to significantly reduce formation of creosote you will need to insulate the chimney liner. Insulation around a gas fireplace metal chimney can catch on fire inside the walls or attic where it will continue to burn until it might be too late to extinguish it to prevent serious damage to your home. This insulating layer is usually made of lime and sand sprayed inside the chimney just as the mortar is drying. It is strongly advised that you do insulate.

The first step to insulating a chimney flue done when it is first made is called parging. This makes it an ideal insulation material for use in areas that experience high temperatures. Remove the insulation between the joists where the flue is located to clear an area about 18 inches away from the flue on each side. Parging aids in the containment of gases from the fire whether its source is coal or wood.

As such it can be used to insulate a chimney. Fiberglass insulation is naturally fire resistant. To replace the seal remove the old gasket vacuum the gasket channel to remove any debris and.