Wood Furnace Transition Piece

[jdew1920]

For those with add-ons or stand alone wood furnaces, do you use a flexible transition piece (vibration isolator I guess) between your plenum and duct work? I'm installing an add on and wondered if I need to remove this and replace with sheet metal. I have no idea if it's fire resistant or not. Just worried since they have required clearances to the duct work and this is basically part of the duct. Maybe they make some that are fire proof? I'm having this install inspected and want to be sure I don't get dinged for anything plus I want it to be safe.

Thanks

 

[mtfallsmikey]

Duct isolators not required by ICC code on residential. If it is old, it probably will tear/fall apart when you remove it. It keeps vibration/noise out of the ductwork system from the furnace.

 

[jdew1920]

Thanks - yeah I know what it does. Because of the clearance issues with wood furnaces I wondered if I should remove it, replace it, or leave it.

Thanks