Insulation Around Metal Chimney

As such it can be used to insulate a chimney.

Insulation around metal chimney.

Yes if the particular metal chimney system was not tested with an airtight firestop attic insulation shield. 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. 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 installation instructions for the specific flue vent connector or metal. Fiberglass insulation is naturally fire resistant. 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. This makes it an ideal insulation material for use in areas that experience high temperatures.

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. Notes to the metal chimney fire clearance table above. Those clearance spacings are normally found in at least two locations. 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.

Leaving more than around 1 11 2 inches in overlap can cause some difficulties when attempting to install the liner.