"Buck Turgidson" wrote in message
news:G6rYg.7884$eZ4.468@dukeread06...
I want to seal the damper of my fireplace, which I never use. I thought it
was a narrow opening that I could easily stuff some insulation. However,
the damper is about 2' wide, and above it is a large chamber. Only further
up the chimney does it taper down to the square terracotta tube. The tube
is no more than 12"x12".

Since I can't really insulation from right above the damper, would I gain
much by stuffing insulation at the top of the chimney? The chimney is
capped of with a metal cap, which should keep the insulation dry, except
in a blowing rain.


I'm thinking of a similar idea, but doing it below the damper. I've got
about a foot of just brick. My idea is to cut a piece of cardboard to wedge
in there, leaving enough space for a lot of loose pink insulation. I'm going
to enclose the insulation in a plastic bag to make it easier to handle if I
want to remove it at some point. (Eliminate contact with it, in other
words).