On Apr 13, 1:38 pm, PerryOne wrote:

It would appear that you have a problem, it could be a badly designed
chimney, a chimney that needs sweeping, a chimney needs to project at
least 3.5 feet above the roof peak to draw properly,

Code (the IRC specifically) requires a chimney to be 2' higher than
the closest section of roof within 10', but no less than 3' higher
than where it penetrates the roof - not 3.5' above the peak. In your
scenario, with a chimney on a non-gable wall, the chimney could easily
extend 10' or 15' above the roof line. Too tall of a chimney is also
a bad thing for the draft...and cost.

R