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 around metal chimney.
Notes to the metal chimney fire clearance table above.
Finally prepare for adding insulation foam or additional fiberglass batts by installing a second piece of vertical sheet metal that provides a 2 inch airspace around and parallel to the chimney.
Place the liner in the middle of the insulation material and begin wrapping the liner allowing for at least 1 inch in overlap along the seam.
The flue is the metal tubing that extends up from the top of your gas furnace or water heater that carries the carbon monoxide gas from the heating unit to your.
Airflow through the 2 airspace or just 2 clearance to combustibles.
And creating hot spots in the metal exterior shell if its airflow around the chimney wouldn t airsealing be a bad thing for the chimney in this case.
Fiberglass insulation is naturally fire resistant.
Leaving more than around 1 11 2 inches in overlap can cause some difficulties when attempting to install the liner.
The installation instructions for the specific flue vent connector or metal.
Those clearance spacings are normally found in at least two locations.
As such it can be used to insulate a chimney.
Yes if the particular metal chimney system was not tested with an airtight firestop attic insulation shield.
Remove the insulation from its kit and lay it out upon the ground foil side down.