Furnace chimney?

Just what the doctor ordered…
Thanks for your help…

so, was it actually ok?

According to what I read the answer is no.


Page 13 sec5
Install the vent in compliance with codes of the country having
jurisdiction, local codes or ordinances and these instructions.

Page 13 sec5 sub sec6
Vertical outdoor runs of Type−B or ANY single wall vent pipe
below the roof line are NOT permitted.

If your answer differs from mine, by all means let me know…