Blaze King Princess 32 (newbie) what am I doing wrong?

[BKVP]

OP, I'd be interested in what happened when you call our offices and "were not able to provide any information to help".

Did you happen to catch the staff members name?

BKVP

 

[Dieselhead]

That was someone else, OP in the initial post stated 15'.
But even then, your 25' is almost 1/3 taller than a 19' flue...

Ours is around 20', I think, and I have no draft issues at all.

Yea that’s the quote in my post, the 19’ guy. Should be in its own thread so there wasn’t the confusion..