vaccu stack plugs up?

[woodsie8]

What is your experience with the vaccu stack cap, plugging up and not letting the insert have a draft?
The chimney guy wants to take my new one off and put a small $45 cap on my liner, so that it will not get clogged and breathe better.
What is your thoughts?

 

[DAKSY]

If you don't burn right, it doesn't matter WHAT type of cap you've got on the system.
VacuStack caps are as good as any other for most situations &
are mostly used to prevent down-drafting...
You are either burning unseasoned wood, not burning hot enuff, or both.
I don't see any need to change the cap.

 

[LLigetfa]

I don't see any need to change the cap.

Agreed. Don't treat the symptom, treat the cause.

 

[begreen]

Usually a clogged cap is caused not by the cap or it's screen, but by burning damp wood or burning with too cool a flue or both. FWIW, we have a Simpson 1/2"-screened cap that's seen about 9 cords of wood smoke through it. It's never shown any sign of clogging.