My oil furnace exhaust travels about six feet through a typical
metal furnace exhaust pipe and exhausts into a dedicated flue
in my brick chimney - all of this in my basement. Just recently,
the mortar/whatever that surrounds the junction of the pipe and chimney
has broke away. This is obviously dangerous due to the potential
for escape of CO gas into the house as well as other dangers.
Additionally one cut brick fell out of place making the
exposed opening large enough at one point to put your fist through.
I've done a number of google searches but haven't really found
any similar problems/solutions. (Although there have been lots
of discussions of chimney/brick/mortar condition and deterioration.)
Question: Is replacing the mortar and resealing this junction a
DIY job? Or is this strictly something that should be left to
I'm comfortable with the rebuild but not if there are unknown safety
hazards that, as a layman, I'm unaware of.
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