Adjusting chimney cap???

[jjdbike]

Hello everyone,

I’ve been enjoying the convenience of using my Treager.
I notice that the chimney cap is adjustable.

I’m wondering is there ever a reason to adjust the height of the cap higher or closer to top of the chimney. Does it impact the airflow, circulation of the smoke?
Can anyone please share?
Respectfully,
JD

[Smoker_Boy]

I came to the conclusion that the only reason Traeger did this is because all-thread is cheaper than a bolt and nut.

It does slightly reduce the airflow the farther down you choke it, but I don't know if it makes any real difference.