Hey,
So I am about to install my new wood burning fireplace insert (Hearthstone Clydesdale) and I want to install a block off plate at the damper in a masonary chimney. I currently already have a fireplace damper in place that is farily large, but will be cutting a large square in to it, to fit the 6 inch pipe through. My question is, I'm not removing the whole damper just removing enough to fit the flue through, so I was thinking of resting some roxul safe'n'sound insulation ontop of the damper as my block off. Roxul seems to be rated to 2100f.
Anyways if I do that, do I really need an additional piece of steel under it (the damper will hold the roxul up), and the other piece of steel while would be nice to put in, based on my damper location, seems like it would be hard to put it there. I'd have to attach the plate of steel directly to the cast iron damper which seems like it would be tough to do with screws.
So bottom line, is roxul enough? Seems like it would be to me... but I only want to do this once ,and I'd like to do it right, without the installation driving me crazy.
So I am about to install my new wood burning fireplace insert (Hearthstone Clydesdale) and I want to install a block off plate at the damper in a masonary chimney. I currently already have a fireplace damper in place that is farily large, but will be cutting a large square in to it, to fit the 6 inch pipe through. My question is, I'm not removing the whole damper just removing enough to fit the flue through, so I was thinking of resting some roxul safe'n'sound insulation ontop of the damper as my block off. Roxul seems to be rated to 2100f.
Anyways if I do that, do I really need an additional piece of steel under it (the damper will hold the roxul up), and the other piece of steel while would be nice to put in, based on my damper location, seems like it would be hard to put it there. I'd have to attach the plate of steel directly to the cast iron damper which seems like it would be tough to do with screws.
So bottom line, is roxul enough? Seems like it would be to me... but I only want to do this once ,and I'd like to do it right, without the installation driving me crazy.