Insulation Around Metal Chimney

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.

Insulation around metal chimney.

Leaving more than around 1 11 2 inches in overlap can cause some difficulties when attempting to install the liner. Yes if the particular metal chimney system was not tested with an airtight firestop attic insulation shield. Notes to the metal chimney fire clearance table above. This makes it an ideal insulation material for use in areas that experience high temperatures.

Airflow through the 2 airspace or just 2 clearance to combustibles. As such it can be used to insulate a chimney. Fiberglass insulation is naturally fire resistant. The installation instructions for the specific flue vent connector or metal.

Remove the insulation from its kit and lay it out upon the ground foil side down. How to insulate a metal flue pipe. As listed where shown in the table above means that the acceptable fire clearance distances for those chimney types must match or comply with the manufacturer s instructions. 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.