This is a 50-year old, single-story house. It has a brick chimney that
is in poor condition(chimney is broken in the attic and moves if I push
on it, chimney needs repointing, etc). The chimney has a round 6"
terra-cotta liner. The chimney is concrete block from the basement up
to the attic floor and then brick from the attic floor to the roof.
The chimney is used to vent the natural gas water heater and natural
I would like to remove the chimney(brick portion) from the attic floor
to the top of the chimney and then replace this with a metal pipe. I
want to do this because: 1) the chimney is broken and may not be safe,
2) roofing/flashing around a brick chimney is a lot of work and it
seems that a metal chimney would be much easier to maintain.
How do I do this? I've looked at "Type B" vent pipe. Is this the
correct product? If so, then it seems straightforward except for
connecting the "Type B" pipe to my 6 inch terra cotta liner. How do I
do that? Is there a special adapter? What is it called? Will I also
need some kind of high-temperature silicone?
thanks in advance